Speed
102tokens a second
Output speed. How fast it writes once the answer starts.
- First token
- 92 s
GPT Sol model by OpenAI
OpenAI's GPT-5.6 flagship model for complex professional work, with text and image input. API model gpt-5.6-sol at US$4 per million input tokens and US$20 per million output tokens, with a 1,050,000-token context window and 128,000 output tokens; also in GitHub Copilot and Cursor.
Where it sits in OpenAI's lineup
Compare with other models Up to 3 beside GPT-5.6 Sol
Suggested comparisons
The models a buyer weighs against GPT-5.6 Sol, picked on list price. Add one to draw it beside GPT-5.6 Sol.
Among the 40 current releases on this chart, GPT-5.6 Sol ranks 7th of 38 on Long context, 6th of 28 on Math and 9th of 38 on Hard reasoning. On Factuality, Epoch AI's runs on SimpleQA Verified put GPT-5.6 Sol 28.7 points above GPT-5.6 Luna, 35.5 points above GLM-5.2 and 19.1 points above Kimi K3. Computer use is OSWorld team's run on OSWorld 2.0 and Instruction following is Artificial Analysis's run on IFBench, marked on the chart. Answers in full: published only for another harness, setting or build, listed in the table.
Each axis is one public benchmark at one setting, on its own fixed 0 to 100 scale, so adding a model never moves another. A dotted bridge crosses a missing result, which is never a zero. A hollow mark is a result from another source: the maker's own figure or another lab's run, where the benchmark's usual source has not tested the model yet. The readout names it.
On the chart
Prices and speeds as of Oct 31, 2026.
GPT-5.6 Sol on each axis11 of 12 with a result
The share of Terminal-Bench 4.0's long terminal tasks the model finishes on its own: services, kernels, proofs and data pipelines, graded on the final artifact with no partial credit.
Terminal-Bench 4.0, pass@1 averaged over 3 runs, mini-swe-agent harness
The share of SciCode's scientific programming subproblems the model's code solves on the first attempt.
SciCode, subproblem accuracy, pass@1, highest effort run
The share of FrontierMath's held-out research-grade problems (tiers 1 to 3) the model answers correctly.
FrontierMath Tiers 1-3, accuracy, pass@1, highest effort run
The share of GPQA Diamond's graduate-level biology, chemistry and physics questions the model answers correctly.
GPQA Diamond, accuracy, pass@1, highest effort run
The share of Humanity's Last Exam's 2,158 text-only questions, expert-written at the edge of human knowledge, the model answers correctly without tools.
Humanity's Last Exam, accuracy, text-only questions, no tools
The share of each AutomationBench task's objectives the model completes by calling REST APIs across simulated business apps (Gmail, Sheets, Slack, Salesforce, Zendesk, Jira, HubSpot), averaged over tasks. A task that breaks one of its policy guardrails scores zero.
AutomationBench-AA, score, Artificial Analysis run
How much of each OSWorld 2.1 workflow the model completes by operating a real Ubuntu desktop through screenshots, mouse and keyboard: all 108 long tasks across apps, files, mail and browsers, on the September 2026 v2.1 release of the task files. A point is the mean share of each task's weighted checks the model passes (the partial score, as a percentage). The OSWorld team's own runs come first. Where the team has not run a release, the point is another lab's run or the maker's own published figure, marked with who ran it and the benchmark it ran: OSWorld 2.1 in the maker's harness, OSWorld 2.0's offline set or the earlier OSWorld-Verified. Those points are drawn so the release has a figure, and they are not ranked against the team's runs.
OSWorld 2.1, partial score, full 108-task set, v2.1 release. Where it has no run of a model, the maker's own figure or another lab's run stands in, marked with its benchmark.
The share of AA-LCR's questions the model answers correctly by reasoning across long sets of real documents, about 100K tokens each.
AA-LCR v1.1, accuracy, Artificial Analysis run
The share of MMMU-Pro's college-level questions over charts, diagrams and photos the model answers correctly.
MMMU-Pro, overall accuracy, no tools
The share of AA-Omniscience's 6,000 knowledge questions across 42 economically relevant topics the model answers correctly from memory, without search.
AA-Omniscience Accuracy, accuracy, Artificial Analysis run. Where it has no run of a model, the maker's own figure or another lab's run stands in, marked with its benchmark.
The share of SpeechMap's 2,120 sensitive and controversial but legal requests the model answers in full: arguments, essays and explanations on contested themes in politics, religion, race, sex, history and similar topics, four wordings per theme across 530 themes. SpeechMap's judge rates each response complete, evasive (hedged or redirected), a denial, or an error (the provider's API blocked the request). Only complete answers count, so the point is the share answered in full: 100 minus the share hedged, refused or blocked by the provider. Higher means more lawful requests answered in full. The share blocked at the provider is printed apart in the table, because an API error is not the model declining. Where SpeechMap runs a release both with reasoning off and with reasoning on (a -reasoning or -thinking entry), the reasoning-on entry is used; a release with one entry uses that entry.
SpeechMap, % Complete over 2,120 contested requests, reasoning-on entry
The share of MultiChallenge's multi-turn conversations in which the model keeps every instruction it was given earlier in the conversation.
MultiChallenge, accuracy, Scale AI run. Where it has no run of a model, the maker's own figure or another lab's run stands in, marked with its benchmark.
Cost, speed, capacity, quality and accuracy for GPT-5.6 Sol, with where each figure sits among the 40 models GILD tracks. These measures stand beside the chart and never feed it.
102tokens a second
Output speed. How fast it writes once the answer starts.
1.05Mtokens
Context window. The most one request can hold, as the maker states it.
10of 19 routes
Routes offering it. Of the clouds, gateways and coding products GILD tracks, those offering it today.
Figures from Artificial Analysis, OpenRouter, GILD's route matrix and OpenAI, read Oct 29 to Nov 1, 2026. Each measure's definition and source open under . Not yet published for GPT-5.6 Sol: Cost per task, Cached input, Whole answer, Reads, Intelligence Index, GDPval knowledge work, Terminal-Bench 4.0, Epoch Capabilities Index, Hallucination rate and Knowledge accuracy.
| Axis | Benchmark and setting | GPT-5.6 Sol | Run | Source | Date |
|---|---|---|---|---|---|
| Agentic coding | Terminal-Bench 4.0Pass@1 averaged over 3 runs, mini-swe-agent harness | 37.9% | GPT-5.6 SolEffort: not published. Harness: mini-swe-agent.Not drawn: Artificial Analysis 39.9% in another lab's harness, Oct 31, 2026. Source | Vals.ai | Oct 29, 2026 |
| Code | SciCodeSubproblem accuracy, pass@1, highest effort run | 57.1% | GPT-5.6 Sol (Max)Effort: max. Harness: none. | Artificial Analysis | Oct 31, 2026 |
| Math | FrontierMath Tiers 1-3Accuracy, pass@1, highest effort run | 89.1% | Effort: max. Harness: none. | Epoch AI | Oct 29, 2026 |
| Science | GPQA DiamondAccuracy, pass@1, highest effort run | 93.5% | Effort: max. Harness: none. | Epoch AI | Oct 29, 2026 |
| Hard reasoning | Humanity's Last ExamAccuracy, text-only questions, no tools | 49.5% | GPT-5.6 Sol (Max)Effort: max. Harness: none. | Artificial Analysis | Oct 31, 2026 |
| Tool use | AutomationBench-AAScore, Artificial Analysis run | 60.1% | GPT-5.6 Sol (Max)Effort: max. Harness: Artificial Analysis AutomationBench harness. | Artificial Analysis | Oct 31, 2026 |
| Computer use | OSWorld 2.0Partial score, full set, v2026.08.08 release. OSWorld team's official run of GPT-5.6 Sol at max reasoning, batch tool, 500 steps.Stands in for OSWorld 2.1, partial score, full 108-task set, v2.1 release, which has no run of GPT-5.6 Sol yet. | 62.7% | GPT-5.6 SolEffort: max. Harness: OSWorld team harness. | OSWorld teamRun by OSWorld team | Oct 29, 2026 |
| Long context | AA-LCR v1.1Accuracy, Artificial Analysis run | 84% | GPT-5.6 Sol (Max)Effort: max. Harness: none. | Artificial Analysis | Oct 31, 2026 |
| Multimodal | MMMU-ProOverall accuracy, no tools | 83.4% | GPT-5.6 Sol (Max)Effort: max. Harness: none. | Artificial Analysis | Oct 31, 2026 |
| Factuality | SimpleQA VerifiedMean score, Epoch AI run. Epoch AI's run at max effort. SimpleQA Verified prints no hallucination rate, so none is shown beside it.Stands in for AA-Omniscience Accuracy, accuracy, Artificial Analysis run, which has no run of GPT-5.6 Sol yet. | 69.7% | Effort: max. Harness: none. | Epoch AIRun by Epoch AI | Aug 10, 2026 |
| Answers in full | SpeechMap% Complete over 2,120 contested requests, reasoning-on entry | Published only for another harness, setting or build, listed in the table | Not drawn: SpeechMap.AI 45.8% at another setting, Oct 31, 2026. Source | ||
| Instruction following | IFBenchAccuracy, Artificial Analysis IFBench run. Artificial Analysis ran GPT-5.6 Sol at its highest published effort in its own evaluation harness.Stands in for MultiChallenge, accuracy, Scale AI run, which has no run of GPT-5.6 Sol yet. | 72.7% | GPT-5.6 Sol (Max)Effort: max. Harness: none. | Artificial AnalysisRun by Artificial Analysis | Oct 31, 2026 |
57 models. A maker's own figure and another lab's run are marked with their benchmark; a missing result reads "Not yet published", never zero.
| Model | Agentic coding | Code | Math | Science | Hard reasoning | Tool use | Computer use | Long context | Multimodal | Factuality | Answers in full | Instructions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.6 Sol | 37.9% | 57.1% | 89.1% | 93.5% | 49.5% | 60.1% | 62.7%Run by OSWorld teamOSWorld 2.0 | 84% | 83.4% | 69.7%Run by Epoch AISimpleQA Verified | Not yet published | 72.7%Run by Artificial AnalysisIFBench |
| ||||||||||||
| GPT-6.1 Terra | 49.5% | 55.1% | 90.9% | 94.3% | 46.2% | 60.2% | 74.2%Reported by OpenAIOSWorld 2.1 | 82.7% | 84.7% | 47.6% | Not yet published | 74.2% |
| ||||||||||||
| GPT-6.1 Sol | 55.1% | 54.2% | 93.7% | 95.4% | 52.9% | 64.9% | 78%Reported by OpenAIOSWorld 2.1 | 83% | 86% | 61.8% | 69.5% | 82% |
| ||||||||||||
| GPT-6 Luna | 13.6% | 54.6% | 78.9% | 90.5% | 38.5% | 53.2% | 48.9%Run by AnthropicOSWorld 2.1 | 83.3% | 79.7% | 39.6% | 63.4% | Not yet published |
| ||||||||||||
| GPT-6 Astra | 59.6% | 56.5% | 93.7% | 95.8% | 54.7% | 68.5% | 75.8%Run by Meta | 80.7% | 86.9% | 61.6% | 68.2% | Not yet published |
| ||||||||||||
| GPT-5.6 Terra | 22.7% | 55% | 86% | 93.3% | 42.9% | 59.6% | Not yet published | 83% | 80.7% | 42.3% | Not yet published | 71.2%Run by Artificial AnalysisIFBench |
| ||||||||||||
| GPT-5.6 Luna | 11.6% | 53.6% | 82.1% | 91.6% | 39.5% | 50.2% | Not yet published | 83.7% | 78.6% | 41%Run by Epoch AISimpleQA Verified | Not yet published | Not yet published |
| ||||||||||||
| GPT-5.5 | 14.6%Run by Artificial AnalysisTerminal-Bench 4.0 | 55.8% | 85.3% | 93.5%Run by Artificial Analysis | 45.8% | 47.3% | 49.5%Run by OSWorld teamOSWorld 2.0 | 84.3% | 79.9% | 63%Run by Epoch AISimpleQA Verified | Not yet published | 75.9%Run by Artificial AnalysisIFBench |
| ||||||||||||
| GPT-5.4 | Not yet published | Not yet published | 78.6% | 93.3% | 43.7% | Not yet published | Not yet published | 82% | 78.4% | Not yet published | Not yet published | 73.9%Run by Artificial AnalysisIFBench |
| ||||||||||||
| gpt-oss-120b | 14.2%Run by Terminal-Bench (via Epoch AI)Terminal-Bench 2.0 | 34% | 88.9%Run by Epoch AIOTIS Mock AIME 2024-2025 | 75.8% | 19.6% | 0.2% | Not yet published | 52% | Not yet published | 16.8%Reported by OpenAISimpleQA | 36.3% | 45.3% |
| ||||||||||||
| GPT-6 Sol | 44.4% | 57.6% | 89.8% | 94.3% | 47.9% | 61.6% | 64.4%Reported by OpenAIOSWorld 2.0 | 83.7% | 82.9% | 54.5% | 64% | Not yet published |
| ||||||||||||
| GPT-5.3-Codex | Not yet published | Not yet published | Not yet published | 91.5%Run by Artificial Analysis | 42.5% | Not yet published | Not yet published | 83.3% | 78.5% | Not yet published | Not yet published | 75.4%Run by Artificial AnalysisIFBench |
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| Claude Haiku 5.5 | 36.4% | 55% | 75.1% | 89.6% | 44.4% | 35.4% | 72.4%Reported by AnthropicOSWorld 2.1 | 82.7% | Not yet published | 34.7% | 78.8% | 67.7% |
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| Claude Sonnet 5.5 | 64.1% | 61% | 88.8% | 95.6% | 55% | 71.8% | 80.1%Reported by Anthropic | 82.7% | Not yet published | 51.5% | 81.6% | Not yet published |
| ||||||||||||
| Claude Opus 5.5 | 65.2% | 66.9% | 91.2% | 90.6% | 61.4% | 69.5% | 81.8%Reported by Anthropic | 84.7% | 87.7% | 65.5% | 82.8% | Not yet published |
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| Claude Fable 5.1 | 58.1% | 63.1% | 90.2% | 93.4%Run by Vals.ai | 59.1% | 59.4% | 80.7%Reported by Anthropic | 85.3% | 86.3%Run by Moonshot AI | 68.4% | 72.4% | Not yet published |
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| Claude Opus 5 | 53.5% | 56.4% | 85.6% | 93.9% | 54.9% | 56.6% | 77.7% | 79.3% | 84.7% | 60.9% | 73.7% | Not yet published |
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| Claude Sonnet 5 | 10.6% | 54.3% | 65.6% | 80.3% | 41.3% | 36.5% | 57%Reported by Anthropic | 82% | 77.3% | 40.1% | Not yet published | Not yet published |
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| Claude Fable 5 | 41.4% | 61% | 87% | 85.9% | 55.5% | 54.1% | Not yet published | 82.3% | Not yet published | 65.4% | 64.8% | 63.5%Run by Artificial AnalysisIFBench |
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| Claude Opus 4.8 | 23.2% | 54.4% | 80% | 91% | 48.7% | 45.6% | 54.8%Run by OSWorld teamOSWorld 2.0 | 77.7% | Not yet published | 48.8% | 67.4% | 62.2%Run by Artificial AnalysisIFBench |
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| Claude Opus 4.7 | Not yet published | 54.5% | 70.2% | 86.4% | 42.3% | Not yet published | 48.9%Run by OSWorld teamOSWorld 2.0 | 78.7% | 78.8% | 48.9% | 70.2% | 58.6%Run by Artificial AnalysisIFBench |
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| Claude Sonnet 4.6 | 3%Run by Artificial AnalysisTerminal-Bench 4.0 | 50.1% | 71.1%Run by Epoch AIOTIS Mock AIME 2024-2025 | 78.8% | 33.6% | 20.1% | 41.5%Run by OSWorld teamOSWorld 2.0 | 80% | 73.3% | 40.9% | 35.8% | 56.6%Run by Artificial AnalysisIFBench |
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| Claude Opus 4.6 | Not yet published | Not yet published | 66% | 88.4% | 39.9% | Not yet published | Not yet published | 78% | 75.4% | 47% | 59.9% | 37.2% |
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| Claude Opus 4.5 | Not yet published | Not yet published | 34.4% | 86% | 30.1% | Not yet published | Not yet published | 77.3% | 74% | 46.6% | 57.5% | 59% |
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| Claude Haiku 4.5 | Not yet published | 42.2% | 66.7%Run by Epoch AIOTIS Mock AIME 2024-2025 | 71.2% | 10.4% | 3.2% | Not yet published | 74.3% | 58.6% | 18% | 24.7% | 50.5% |
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| Claude Sonnet 4.5 | Not yet published | 45.7% | 23.9% | 82.3% | 17.8% | 14.1% | Not yet published | 72.3% | 68.7% | 32.9% | 31.4% | 55.3% |
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| Gemini 4 Argon | 57.6% | 61.8% | 86% | 96.4% | 57.1% | 77.5% | 69.2%Reported by GoogleOSWorld 2.0 | 79.7% | Not yet published | 48.3% | 87% | 78.7% |
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| Gemini 3.8 Flash | 19.7% | 56.6% | 68.4% | 95.4% | 47.8% | 59.9% | 59%Reported by GoogleOSWorld 2.0 | 81.3% | 85.6% | 50.5% | 86.1% | Not yet published |
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| Gemma 4 31B | Not yet published | 45.5% | Not yet published | 85.7%Run by Artificial AnalysisGPQA Diamond | 23.6% | 4.9% | Not yet published | 69.7% | 73.4% | 10.4%Run by Epoch AISimpleQA Verified | 82.3% | 75.6%Run by Artificial AnalysisIFBench |
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| Gemini 3.1 Pro Preview | 2.5% | 58.7% | 59.6% | 94.4% | 47% | 35.4% | Not yet published | 82% | 82.4% | 54.9% | 59.9% | 71.4% |
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| Gemini 3.6 Flash | 7.1%Run by Artificial AnalysisTerminal-Bench 4.0 | 53.4% | 58.9% | 94.1% | 40.8% | 53% | 83%Reported by GoogleOSWorld-Verified | 80% | 83.2% | 66.2%Run by Epoch AISimpleQA Verified | 87.2% | Not yet published |
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| DeepSeek V4.1 Flash | 31.8% | 55.9% | 71.2% | 93.2% | 43.3% | 66.6% | 69.3%Run by Moonshot AIOSWorld 2.1 | 82.7% | 80.6% | 39.6% | Not yet published | 74.9% |
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| DeepSeek V4 Pro | 14.1% | 51% | 64.6% | 91.7% | 41% | 56.7% | Not yet published | 80.3% | Not yet published | 45.2% | 72% | Not yet published |
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| Kimi K3.1 Pro | 63.6% | 60.8% | Not yet published | 94.2%Reported by Moonshot AI | 52.5% | 73.3% | 79.6%Reported by Moonshot AIOSWorld 2.1 | 86.3% | 83.9% | 48.9% | Not yet published | Not yet published |
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| Kimi K3 | 17.2% | 59.5% | 72.2% | 93.1% | 46.9% | 58.3% | Not yet published | 88.7% | 80.5% | 50.6%Run by Epoch AISimpleQA Verified | 65.9% | Not yet published |
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| Kimi K2.7 Code | 1%Run by Artificial AnalysisTerminal-Bench 4.0 | 47.8% | 54% | 87.9% | 35% | 24.5% | Not yet published | 79.3% | Not yet published | 36.5%Run by Epoch AISimpleQA Verified | Not yet published | 63.1%Run by Artificial AnalysisIFBench |
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| Mistral Large 4 | 24.7%Run by Artificial AnalysisTerminal-Bench 4.0 | Not yet published | Not yet published | Not yet published | Not yet published | 57.8% | Not yet published | Not yet published | Not yet published | 26% | Not yet published | Not yet published |
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| Mistral Medium 3.5 | 0%Run by Artificial AnalysisTerminal-Bench 4.0 | 40.2% | Not yet published | 74.8%Run by Artificial AnalysisGPQA Diamond | 13.8% | 6.3% | Not yet published | 69.3% | 64.9% | 23% | 70.5% | 68.8%Run by Artificial AnalysisIFBench |
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| Grok 4.7 | 28.8% | 57.4% | 53% | 92.7% | 43.1% | 65.6% | Not yet published | 76.7% | Not yet published | 42.7% | 64.1% | Not yet published |
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| Grok 4.6 | 17.2% | 56.5% | 66% | 93.2% | 42.9% | 66.7% | Not yet published | 80.3% | Not yet published | 48.9%Run by Epoch AISimpleQA Verified | 83.6% | Not yet published |
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| Grok 4.5 | 8.6% | 55% | 57.2% | 93.4% | 42.7% | 57.9% | Not yet published | 79.3% | 80.4% | 48.3%Run by Epoch AISimpleQA Verified | 93.1% | Not yet published |
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| MiniMax M3.1 Flash | 25.3% | 53.4% | Not yet published | Not yet published | 48% | 72.5% | 61.7%Reported by MiniMaxOSWorld 2.0 | 79.7% | 79.1% | 45.1% | Not yet published | Not yet published |
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| Mercury 3 | 3% | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published | Not yet published |
| GLM-5.3-Flash | 37.4% | 51.6% | 55.8% | 90.2% | 39.9% | 60.4% | 59.1%Reported by Z.aiOSWorld 2.0 | 80% | 86%Run by Vals.aiMMMU-Pro | 28.2% | 65.4% | Not yet published |
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| GLM-5.3 | 38.9% | 59% | 68.8% | 90.9% | 42.3% | 62.2% | Not yet published | 79.7% | Not yet published | 32.3% | 71.5% | Not yet published |
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| GLM-5.2 | 1%Run by Artificial AnalysisTerminal-Bench 4.0 | 51.2% | 59.2% | Not yet published | 41.1% | 28.4% | Not yet published | 78.3% | Not yet published | 34.2%Run by Epoch AISimpleQA Verified | Not yet published | 73.3%Run by Artificial AnalysisIFBench |
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| Muse Spark Open | 6.6% | 58.4% | 69.8% | 88.6% | 43.9% | 49.7% | 80.4%Reported by MetaOSWorld-Verified | 78.3% | 80.9% | 42% | Not yet published | 74.2% |
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| Muse Wonder | 49.5% | 60.3% | 82.1% | Not yet published | 50.1% | 68.1% | 72.6%Reported by Meta | 80.7% | Not yet published | 38% | 42.7% | Not yet published |
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| Muse Spark 1.3 | 10.6% | 58.8% | 74% | 93.5%Run by Artificial AnalysisGPQA Diamond | 48.7% | 57.9% | 69.6% | 83% | 82% | 38% | 25.8% | Not yet published |
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| Llama 4 Scout | Not yet published | 21.3% | 7.8%Run by Epoch AIOTIS Mock AIME 2024-2025 | 51.8% | 3.8% | 0.2% | Not yet published | 27.7% | 52.9% | Not yet published | 70.1% | 39.5%Run by Artificial AnalysisIFBench |
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| Llama 4 Maverick | Not yet published | 31.7% | 20.6%Run by Epoch AIOTIS Mock AIME 2024-2025 | 67% | 4.9% | 0.2% | Not yet published | 50% | 62.1% | Not yet published | 58.3% | 43%Run by Artificial AnalysisIFBench |
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| Qwen3.8 27B | 5.6%Run by Artificial AnalysisTerminal-Bench 4.0 | 46.6% | Not yet published | 90.5%Run by Artificial AnalysisGPQA Diamond | 33.9% | 48.2% | 84.3%Reported by AlibabaOSWorld-Verified | 82% | 76.3% | 17.3% | Not yet published | 79.5%Reported by AlibabaIFBench |
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| Qwen3.8 Max | 38.9% | 52.1% | 65.6% | 92.3% | 43.1% | 56.2% | Not yet published | 80.3% | 82.8% | 29.5% | 65.3% | Not yet published |
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| MiMo-V2.6-Pro | 31.3% | 60.9% | Not yet published | Not yet published | 49.4% | 58.6% | 82%Reported by XiaomiOSWorld-Verified | 86.3% | Not yet published | 34.8% | 66.5% | Not yet published |
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| MiMo-V2.6-Flash | 24.2% | 51.3% | Not yet published | Not yet published | 35.1% | 64.1% | 80.8%Reported by XiaomiOSWorld-Verified | 74.3% | 73.1% | 27.2% | 66.9% | Not yet published |
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| Ling 3.1 Flash | 32.8%Run by Artificial AnalysisTerminal-Bench 4.0 | 56.8% | Not yet published | Not yet published | 43.5% | 67.5% | Not yet published | 82.3% | Not yet published | 26.5% | Not yet published | Not yet published |
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| Step 5 Preview | 31.8% | 58.9% | Not yet published | 93.5%Reported by StepFunGPQA Diamond | 46.5% | 51% | Not yet published | 88.3% | 76.4% | 36.4% | 59.7% | Not yet published |
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The other models in the grid have no result on Terminal-Bench 4.0 yet.
The other models in the grid have no result on SciCode yet.
The other models in the grid have no result on FrontierMath Tiers 1-3 yet.
The other models in the grid have no result on GPQA Diamond yet.
The other models in the grid have no result on Humanity's Last Exam yet.
The other models in the grid have no result on AutomationBench-AA yet.
The other models in the grid have no result on OSWorld 2.1 yet.
The other models in the grid have no result on AA-LCR v1.1 yet.
The other models in the grid have no result on MMMU-Pro yet.
The other models in the grid have no result on AA-Omniscience Accuracy yet.
The other models in the grid have no result on SpeechMap yet.
The other models in the grid have no result on MultiChallenge yet.
Cost, speed, reliability, knowledge-work and domain results for GPT-5.6 Sol beyond the twelve chart axes, each with the run it comes from and its publisher. These stay separate measures; none is folded into the chart.
| Measure | GPT-5.6 Sol | Run | Source | Read |
|---|---|---|---|---|
| Specs and access | ||||
| Context windowThe most tokens one request can hold, as the maker states it. Size alone says nothing about how well the model uses a long input; the Long context axis measures that. | 1.05M | OpenRouter | Oct 29, 2026 | |
| Max outputThe most tokens the model writes in one response. | 128K | no OpenAI figure in the stored maker sources; OpenRouter lists 128,000 | OpenRouter | Oct 29, 2026 |
| LicenceThe terms the weights or the service are offered under. | OpenAI Services Agreement | OpenAI | Nov 1, 2026 | |
| Open weightsWhether the maker publishes the weights for anyone to run. | No | Artificial Analysis | Oct 31, 2026 | |
| Routes offering itOf the 19 clouds, gateways and coding products GILD tracks, how many offer the release today, preview included. | 10 of 19 | GILD route matrix | Oct 31, 2026 | |
| Speed | ||||
| Time to first tokenLower is better. Median seconds to the first streamed chunk on AA's API runs, with the 5th and 95th percentile when AA prints them. Reasoning models spend this time thinking. | 92 s | Artificial Analysis | Oct 31, 2026 | |
| Output speedMedian output tokens per second on AA's API runs, with the 5th and 95th percentile when AA prints them. | 102 tokens/s | Artificial Analysis | Oct 31, 2026 | |
Where GPT-5.6 Sol is offered, what each route charges, and how each endpoint is holding up.
10 of 19 routes GILD tracks offer GPT-5.6 Sol today, preview included. Read Oct 31, 2026 from each route's own pages.
| Route | Status | Model ID | Limits and lifecycle | Sources |
|---|---|---|---|---|
| Amazon Bedrock | Available | openai.gpt-5.6-solus.openai.gpt-5.6-solin.openai.gpt-5.6-solglobal.openai.gpt-5.6-sol | In-Region on bedrock-mantle; us., in. and global. profiles on bedrock-runtime; 1,050,000 context; Bedrock launched it July 13, 2026 | Amazon Web Services |
| Cursor | Available | not statedpicker label GPT-5.6 Sol | US$4 input, US$0.40 cache read, US$20 output; Max Mode on legacy request-based plans; Fast mode at 2x | Cursor |
| Databricks | Available | databricks-gpt-5-6-sol | Model service name system.ai.gpt-5-6-sol; listed on the supported-models page | Databricks |
| The maker's own API | Available | gpt-5.6-sol | Text and image input; 1,050,000 context, 128,000 output; paid tiers Build to Grow only, with no free tier | OpenAI |
| GitHub Copilot | Available | not statedpicker label GPT-5.6 Sol | available (GA) | GitHub |
| GitHub Models | Retired | not applicableservice retired | service retired July 30, 2026 | GitHub |
| Microsoft Foundry | Available | gpt-5.6-sol | Version 2026-07-09; 1,050,000 context (input 922,000, output 128,000) | Microsoft |
| OpenCode | Available | gpt-5.6-sol | OpenCode Zen; not on OpenCode Go | OpenCode, ModelsOpenCode, Go |
| OpenRouter | Available | openai/gpt-5.6-solopenai/gpt-5.6-sol:batch | 1,050,000 context for the model; top provider 128,000 output; batch variant listed | OpenRouter |
| Snowflake Cortex | Available | openai-gpt-5.6-sol | Listed in Cortex's regional availability table | Snowflake |
| Windsurf / Devin | Available | gpt-5-6-sol-nonegpt-5-6-sol-lowgpt-5-6-sol-mediumgpt-5-6-sol-highgpt-5-6-sol-xhighgpt-5-6-sol-max | Pro and Enterprise tiers; No Thinking to Max Thinking efforts, each with a Fast variant | Cognition |
Not offered on 4 routes: Antigravity, Claude on Google Cloud (Anthropic managed), Claude Platform on AWS and Google Cloud Vertex / Agent Platform (Google managed).
4 routes do not say: Claude Code, Codex, Gemini CLI and Grok Build.
| Route | Status | Model ID | Limits and lifecycle | Sources |
|---|---|---|---|---|
| Antigravity | Not offered | Antigravity lists Gemini, Claude and GPT-OSS models only | ||
| Claude on Google Cloud (Anthropic managed) | Not offered | Takes the Claude API's model IDs, which name Anthropic's Claude models only | Anthropic, Claude Models on Google Cloud (Anthropic managed)Anthropic, Models overview | |
| Claude Platform on AWS | Not offered | Claude Platform on AWS lists Anthropic's Claude models only | Anthropic | |
| Google Cloud Vertex / Agent Platform (Google managed) | Not offered | OpenAI section lists gpt-oss only | Google Cloud, Gemini Enterprise Agent Platform partner models for MaaSGoogle Cloud, Anthropic's Claude on Google Cloud models | |
| Claude Code | Not stated | No vendor documents this model in Claude Code, which takes Anthropic model names or a cloud provider's Claude IDs | Anthropic | |
| Codex | Not stated | Codex's models page does not name GPT-5.6 Sol; with an API key, Codex offers the models the API organization has | OpenAI | |
| Gemini CLI | Not stated | Gemini CLI's model page names Gemini models only | ||
| Grok Build | Not stated | Grok Build names only grok-4.7; its docs say it supports any custom model added to its config file | xAI (SpaceXSI), Grok Build: SpaceXSI's Coding AgentxAI (SpaceXSI), Bring Grok to |
The lowest standard rate is OpenAI API, at $4 / $20 per million input and output tokens. US dollars per million tokens, as each route lists them, one row per route and rate plan, cheapest standard rate first after the maker's own; a blended rate states its mix. OpenRouter's endpoints follow under one heading, each with its monitor's uptime over 1 day and 30 minutes and the context and output it serves.
| Route | Standard, in / out | Cache read | Other rates | Source, or uptime (1 day / 30 min) and limits |
|---|---|---|---|---|
| OpenAI APIMakerLowest | $4 / $20 | OpenAI, Oct 31, 2026 | ||
| OpenRouterprompts under 272K tokens | $4 / $20 | $0.4 | Cache read $0.8, prompts of 272K tokens or moreCache write $10, 5-minute cache, prompts of 272K tokens or moreCache write $5, 5-minute cache, prompts under 272K tokensLong context $8 / $30, prompts of 272K tokens or more | OpenRouter, Oct 29, 2026 |
| Through OpenRouter, 8 provider endpoints. OpenRouter, Oct 31, 2026 | ||||
| Amazon Bedrock (global)prompts under 272K tokens | $4 / $20 | $0.4 | Cache read $0.8, prompts of 272K tokens or moreCache write $10, 5-minute cache, prompts of 272K tokens or moreCache write $5, 5-minute cache, prompts under 272K tokensLong context $8 / $30, prompts of 272K tokens or more | Up 100% / 100%1.05M context, 128K output |
| Azureprompts under 272K tokens | $4 / $20 | $0.4 | Cache read $0.8, prompts of 272K tokens or moreCache write $10, 5-minute cache, prompts of 272K tokens or moreCache write $5, 5-minute cache, prompts under 272K tokensLong context $8 / $30, prompts of 272K tokens or more | Up 100% / 100%1.05M context, 128K output |
| OpenAIprompts under 272K tokens | $4 / $20 | $0.4 | Cache read $0.8, prompts of 272K tokens or moreCache write $10, 5-minute cache, prompts of 272K tokens or moreCache write $5, 5-minute cache, prompts under 272K tokensLong context $8 / $30, prompts of 272K tokens or more | Up 100% / 100%1.05M context, 128K output |
| Amazon Bedrock (us-east-1)prompts under 272K tokens | $4.40 / $22 | $0.44 | Cache read $0.88, prompts of 272K tokens or moreCache write $11, 5-minute cache, prompts of 272K tokens or moreCache write $5.50, 5-minute cache, prompts under 272K tokensLong context $8.80 / $33, prompts of 272K tokens or more | Up 100%1.05M context, 128K output |
| Azure (eu)prompts under 272K tokens | $4.40 / $22 | $0.44 | Cache read $0.88, prompts of 272K tokens or moreCache write $11, 5-minute cache, prompts of 272K tokens or moreCache write $5.50, 5-minute cache, prompts under 272K tokensLong context $8.80 / $33, prompts of 272K tokens or more | Up 100%1.05M context, 128K output |
| Azure (us)prompts under 272K tokens | $4.40 / $22 | $0.44 | Cache read $0.88, prompts of 272K tokens or moreCache write $11, 5-minute cache, prompts of 272K tokens or moreCache write $5.50, 5-minute cache, prompts under 272K tokensLong context $8.80 / $33, prompts of 272K tokens or more | Up 100%1.05M context, 128K output |
| OpenAI (fast, priority) | Cache read $1.60, priority tier, prompts of 272K tokens or moreCache read $0.8, priority tier, prompts under 272K tokensCache write $20, priority tier, 5-minute cache, prompts of 272K tokens or moreCache write $10, priority tier, 5-minute cache, prompts under 272K tokensLong context $16 / $60, priority tier, prompts of 272K tokens or morePriority $8 / $40, priority tier, prompts under 272K tokens | Up 100%1.05M context, 128K output | ||
| OpenAI (flex) | Cache read $0.4, flex tier, prompts of 272K tokens or moreCache read $0.2, flex tier, prompts under 272K tokensCache write $5, flex tier, 5-minute cache, prompts of 272K tokens or moreCache write $2.50, flex tier, 5-minute cache, prompts under 272K tokensFlex $2 / $10, flex tier, prompts under 272K tokensLong context $4 / $15, flex tier, prompts of 272K tokens or more | Up 100%1.05M context, 128K output | ||
OpenAI's 12 releases in 7 families, oldest to newest along each tier, with list price and speed. GPT-5.6 Sol is lit.
CurrentLegacyThis model
Price is the list price per 1M tokens, input / output. Speed is median output tokens per second. Bars share one scale across the lineup. Read between Oct 26, 2026 and Nov 2, 2026.
OpenAI's fast, efficient GPT tier for visual reasoning, computer use, and writing.
2 releases
OpenAI's GPT model tier for demanding everyday and agentic work.
3 releases
OpenAI's most efficient GPT model tier for focused, high-volume tasks.
2 releases
OpenAI's highest-capability GPT model tier.
1 release
OpenAI's GPT-5 frontier models, released before the Sol, Terra and Luna tiers.
2 releases
OpenAI's open-weight GPT models under the Apache 2.0 license.
1 release
OpenAI's GPT models tuned for agentic coding in Codex.
1 release
The layers of Agentic Software Development that GPT-5.6 Sol can power. A product supplies the rest.
Product & Engineering, Software Development
GPT-5.6 Sol can power coding, reasoning, and validation work inside an agentic software-development product. The Model does not itself provide the surrounding interface, execution environment, or system of record.
The Model can assist with work planning & task decomposition when a Product supplies the necessary context and tools.
The Model can assist with codebase context & intelligence when a Product supplies the necessary context and tools.
The Model can assist with coding & implementation when a Product supplies the necessary context and tools.
The Model can assist with debugging & investigation when a Product supplies the necessary context and tools.
The Model can assist with testing & verification when a Product supplies the necessary context and tools.
The Model can assist with code review & quality when a Product supplies the necessary context and tools.
We cover 5 products that offer GPT-5.6 Sol today: 4 subscriptions and 1 API.
Plan access as each vendor's page states it: Amazon (Oct 28, 2026), Anysphere (Oct 28, 2026), GitHub (Oct 31, 2026), OpenAI (Oct 28, 2026).
GILD comparisons that name GPT-5.6 Sol, then those of the clouds and APIs that serve it.
GPT-5.6 Sol has enough accounts to score 2 of 7 axes so far.
Each figure is the share of accounts naming GPT-5.6 Sol that speak well of it on that axis. An axis is scored once praise and concerns are both on record from at least five accounts by three authors. An account from the maker, a company that sells or serves the model, or the maker's expert program is listed and counts toward no figure.
| Axis | Favorable | Accounts |
|---|---|---|
| Quality and reasoningWhether its answers and code are right on the author's own task: reasoning, accuracy, instruction following, and consistency. | 33% | 3 favorable, 6 not, 9 authors |
| Tool use and structured outputWhether it calls tools correctly, returns valid structured output, and keeps agent loops on track. | No accounts yet | None yet |
| Long contextHow it holds up over long documents, large codebases, long sessions, and many images or PDFs. | No accounts yet | None yet |
| Developer experienceHow it is to build with: prompting, steering, effort settings, and support across SDKs and providers. | No accounts yet | None yet |
| CostWhat the work costs: price per task, token use, and what caching and batch save. | 57% | 4 favorable, 3 not, 7 authors |
| SpeedResponse time, time to first token, and throughput. | Only praise on record | 1 favorable, 0 not, 1 author |
| ReliabilityWhether requests keep succeeding: overloaded errors, outages, rate limits, and changes that broke what worked. | Only concerns on record | 0 favorable, 4 not, 4 authors |
| Axis | GPT-5.6 Sol | GPT-6.1 Terra | GPT-6.1 Sol | GPT-6 Luna | GPT-6 Astra | GPT-5.6 Terra | GPT-5.6 Luna | GPT-5.5 | GPT-5.4 | gpt-oss-120b | GPT-6 Sol | GPT-5.3-Codex | Claude Haiku 5.5 | Claude Sonnet 5.5 | Claude Opus 5.5 | Claude Fable 5.1 | Claude Opus 5 | Claude Sonnet 5 | Claude Fable 5 | Claude Opus 4.8 | Claude Opus 4.7 | Claude Sonnet 4.6 | Claude Opus 4.6 | Claude Opus 4.5 | Claude Haiku 4.5 | Claude Sonnet 4.5 | Gemini 4 Argon | Gemini 3.8 Flash | Gemma 4 31B | Gemini 3.1 Pro Preview | Gemini 3.6 Flash | DeepSeek V4.1 Flash | DeepSeek V4 Pro | Kimi K3.1 Pro | Kimi K3 | Kimi K2.7 Code | Mistral Large 4 | Mistral Medium 3.5 | Grok 4.7 | Grok 4.6 | Grok 4.5 | MiniMax M3.1 Flash | Mercury 3 | GLM-5.3-Flash | GLM-5.3 | GLM-5.2 | Muse Spark Open | Muse Wonder | Muse Spark 1.3 | Llama 4 Scout | Llama 4 Maverick | Qwen3.8 27B | Qwen3.8 Max | MiMo-V2.6-Pro | MiMo-V2.6-Flash | Ling 3.1 Flash | Step 5 Preview |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quality and reasoning | 33%3 favorable, 6 not, 9 authors | 33%3 favorable, 6 not, 8 authors | 55%12 favorable, 10 not, 22 authors | 55%16 favorable, 13 not, 29 authors | 44%12 favorable, 15 not, 26 authors | 38%3 favorable, 5 not, 8 authors | Needs 5 accounts from 3 authors3 favorable, 1 not, 4 authors | 33%4 favorable, 8 not, 12 authors | 33%2 favorable, 4 not, 6 authors | 58%22 favorable, 16 not, 38 authors | 31%10 favorable, 22 not, 32 authors | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | 73%19 favorable, 7 not, 26 authors | 64%14 favorable, 8 not, 22 authors | 68%17 favorable, 8 not, 25 authors | 54%15 favorable, 13 not, 28 authors | 50%6 favorable, 6 not, 12 authors | 56%9 favorable, 7 not, 16 authors | 68%13 favorable, 6 not, 18 authors | 68%17 favorable, 8 not, 25 authors | 57%12 favorable, 9 not, 21 authors | 67%12 favorable, 6 not, 18 authors | 70%19 favorable, 8 not, 27 authors | 62%13 favorable, 8 not, 20 authors | 58%14 favorable, 10 not, 24 authors | 69%11 favorable, 5 not, 16 authors | 63%22 favorable, 13 not, 35 authors | 56%27 favorable, 21 not, 45 authors | 80%24 favorable, 6 not, 28 authors | 56%20 favorable, 16 not, 36 authors | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | 61%25 favorable, 16 not, 40 authors | Only concerns on record0 favorable, 4 not, 4 authors | 59%20 favorable, 14 not, 32 authors | Only praise on record3 favorable, 0 not, 3 authors | 50%3 favorable, 3 not, 6 authors | 58%11 favorable, 8 not, 18 authors | 36%5 favorable, 9 not, 14 authors | 43%16 favorable, 21 not, 36 authors | 86%6 favorable, 1 not, 7 authors | 60%3 favorable, 2 not, 5 authors | 62%13 favorable, 8 not, 21 authors | 86%18 favorable, 3 not, 21 authors | 67%14 favorable, 7 not, 21 authors | 76%47 favorable, 15 not, 61 authors | 71%5 favorable, 2 not, 7 authors | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | 20%1 favorable, 4 not, 5 authors | Only praise on record2 favorable, 0 not, 2 authors | 53%8 favorable, 7 not, 15 authors | 44%8 favorable, 10 not, 17 authors | 71%24 favorable, 10 not, 34 authors | 57%4 favorable, 3 not, 7 authors | 22%2 favorable, 7 not, 9 authors | 40%4 favorable, 6 not, 10 authors | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors |
| Tool use and structured output | No accounts yet | 40%2 favorable, 3 not, 5 authors | 40%4 favorable, 6 not, 10 authors | 33%3 favorable, 6 not, 9 authors | 62%8 favorable, 5 not, 13 authors | Only concerns on record0 favorable, 2 not, 2 authors | Only praise on record1 favorable, 0 not, 1 author | Only praise on record1 favorable, 0 not, 1 author | No accounts yet | 27%4 favorable, 11 not, 15 authors | 56%5 favorable, 4 not, 9 authors | No accounts yet | 67%6 favorable, 3 not, 9 authors | 40%4 favorable, 6 not, 10 authors | 46%6 favorable, 7 not, 13 authors | 30%3 favorable, 7 not, 10 authors | Needs 5 accounts from 3 authors3 favorable, 1 not, 4 authors | 70%7 favorable, 3 not, 10 authors | 57%4 favorable, 3 not, 7 authors | 50%4 favorable, 4 not, 8 authors | 50%4 favorable, 4 not, 8 authors | 29%2 favorable, 5 not, 7 authors | 33%4 favorable, 8 not, 12 authors | 70%7 favorable, 3 not, 10 authors | 43%3 favorable, 4 not, 6 authors | 50%3 favorable, 3 not, 6 authors | 25%2 favorable, 6 not, 8 authors | 47%7 favorable, 8 not, 15 authors | 67%4 favorable, 2 not, 6 authors | 54%7 favorable, 6 not, 12 authors | Only concerns on record0 favorable, 1 not, 1 author | 59%10 favorable, 7 not, 17 authors | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors3 favorable, 1 not, 4 authors | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | 38%5 favorable, 8 not, 13 authors | Only concerns on record0 favorable, 5 not, 5 authors | 38%6 favorable, 10 not, 16 authors | Only praise on record2 favorable, 0 not, 2 authors | Only concerns on record0 favorable, 1 not, 1 author | 67%4 favorable, 2 not, 6 authors | 80%8 favorable, 2 not, 10 authors | 33%2 favorable, 4 not, 6 authors | 57%4 favorable, 3 not, 7 authors | No accounts yet | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | Needs 5 accounts from 3 authors1 favorable, 2 not, 3 authors | Only concerns on record0 favorable, 4 not, 4 authors | 46%6 favorable, 7 not, 13 authors | Only praise on record1 favorable, 0 not, 1 author | Only concerns on record0 favorable, 5 not, 5 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author |
| Long context | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | 38%3 favorable, 5 not, 8 authors | 20%1 favorable, 4 not, 5 authors | 27%3 favorable, 8 not, 11 authors | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | 25%2 favorable, 6 not, 8 authors | Only concerns on record0 favorable, 3 not, 3 authors | No accounts yet | 29%2 favorable, 5 not, 7 authors | 60%3 favorable, 2 not, 5 authors | 80%8 favorable, 2 not, 10 authors | 63%5 favorable, 3 not, 8 authors | 67%4 favorable, 2 not, 6 authors | 50%3 favorable, 3 not, 6 authors | 33%2 favorable, 4 not, 6 authors | 60%6 favorable, 4 not, 10 authors | 50%4 favorable, 4 not, 7 authors | 71%5 favorable, 2 not, 7 authors | 64%7 favorable, 4 not, 11 authors | 40%4 favorable, 6 not, 10 authors | 40%2 favorable, 3 not, 5 authors | 50%4 favorable, 4 not, 8 authors | 25%2 favorable, 6 not, 8 authors | 38%5 favorable, 8 not, 13 authors | 20%1 favorable, 4 not, 5 authors | 44%7 favorable, 9 not, 16 authors | Only praise on record1 favorable, 0 not, 1 author | 58%7 favorable, 5 not, 12 authors | No accounts yet | Needs 5 accounts from 3 authors3 favorable, 1 not, 4 authors | Only praise on record1 favorable, 0 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | No accounts yet | 42%5 favorable, 7 not, 12 authors | No accounts yet | No accounts yet | 40%2 favorable, 3 not, 5 authors | 60%3 favorable, 2 not, 5 authors | No accounts yet | 40%2 favorable, 3 not, 5 authors | No accounts yet | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 3 not, 3 authors | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | 75%6 favorable, 2 not, 8 authors | Only praise on record1 favorable, 0 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | No accounts yet | No accounts yet |
| Developer experience | No accounts yet | Only concerns on record0 favorable, 2 not, 2 authors | 27%3 favorable, 8 not, 11 authors | 25%2 favorable, 6 not, 8 authors | 41%7 favorable, 10 not, 17 authors | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | No accounts yet | No accounts yet | 14%1 favorable, 6 not, 7 authors | 25%3 favorable, 9 not, 12 authors | No accounts yet | 25%2 favorable, 6 not, 8 authors | 38%5 favorable, 8 not, 13 authors | 38%6 favorable, 10 not, 16 authors | 50%7 favorable, 7 not, 14 authors | 25%3 favorable, 9 not, 12 authors | 29%2 favorable, 5 not, 7 authors | 25%3 favorable, 9 not, 12 authors | 53%10 favorable, 9 not, 19 authors | 29%4 favorable, 10 not, 14 authors | 57%4 favorable, 3 not, 7 authors | 45%5 favorable, 6 not, 11 authors | 67%8 favorable, 4 not, 12 authors | Needs 5 accounts from 3 authors2 favorable, 2 not, 4 authors | 50%3 favorable, 3 not, 6 authors | 33%3 favorable, 6 not, 9 authors | 39%7 favorable, 11 not, 17 authors | Only concerns on record0 favorable, 7 not, 7 authors | 40%8 favorable, 12 not, 20 authors | No accounts yet | 35%8 favorable, 15 not, 23 authors | No accounts yet | 9%1 favorable, 10 not, 11 authors | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | 13%2 favorable, 14 not, 16 authors | Only concerns on record0 favorable, 9 not, 9 authors | 25%5 favorable, 15 not, 20 authors | No accounts yet | No accounts yet | Only concerns on record0 favorable, 7 not, 7 authors | 11%1 favorable, 8 not, 9 authors | Only concerns on record0 favorable, 3 not, 3 authors | 33%5 favorable, 10 not, 15 authors | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | Only concerns on record0 favorable, 6 not, 6 authors | Only concerns on record0 favorable, 1 not, 1 author | 17%1 favorable, 5 not, 6 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | No accounts yet |
| Cost | 57%4 favorable, 3 not, 7 authors | 80%8 favorable, 2 not, 9 authors | 74%14 favorable, 5 not, 19 authors | 79%22 favorable, 6 not, 26 authors | 29%7 favorable, 17 not, 23 authors | Only concerns on record0 favorable, 1 not, 1 author | 50%3 favorable, 3 not, 6 authors | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | 63%5 favorable, 3 not, 8 authors | 60%3 favorable, 2 not, 5 authors | 55%12 favorable, 10 not, 21 authors | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | 69%20 favorable, 9 not, 29 authors | 45%10 favorable, 12 not, 22 authors | 56%15 favorable, 12 not, 27 authors | 20%4 favorable, 16 not, 20 authors | 43%3 favorable, 4 not, 7 authors | 39%7 favorable, 11 not, 17 authors | 8%1 favorable, 11 not, 12 authors | 40%6 favorable, 9 not, 14 authors | 50%7 favorable, 7 not, 13 authors | 50%6 favorable, 6 not, 12 authors | 33%7 favorable, 14 not, 20 authors | 53%8 favorable, 7 not, 15 authors | 29%4 favorable, 10 not, 12 authors | 38%3 favorable, 5 not, 8 authors | 35%7 favorable, 13 not, 20 authors | 58%14 favorable, 10 not, 23 authors | Only praise on record7 favorable, 0 not, 7 authors | 50%8 favorable, 8 not, 16 authors | Only concerns on record0 favorable, 1 not, 1 author | 66%25 favorable, 13 not, 37 authors | Only praise on record2 favorable, 0 not, 2 authors | 40%10 favorable, 15 not, 25 authors | 71%5 favorable, 2 not, 7 authors | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | 27%3 favorable, 8 not, 11 authors | Only concerns on record0 favorable, 8 not, 8 authors | 19%5 favorable, 21 not, 26 authors | 20%1 favorable, 4 not, 5 authors | Only praise on record4 favorable, 0 not, 4 authors | 80%12 favorable, 3 not, 15 authors | 50%6 favorable, 6 not, 12 authors | 76%16 favorable, 5 not, 21 authors | 35%8 favorable, 15 not, 23 authors | 71%5 favorable, 2 not, 7 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 9 not, 9 authors | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | Only praise on record1 favorable, 0 not, 1 author | Only praise on record1 favorable, 0 not, 1 author | Needs 5 accounts from 3 authors2 favorable, 2 not, 4 authors | Only concerns on record0 favorable, 2 not, 2 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | Only praise on record3 favorable, 0 not, 3 authors | Only praise on record1 favorable, 0 not, 1 author | Only praise on record1 favorable, 0 not, 1 author |
| Speed | Only praise on record1 favorable, 0 not, 1 author | 83%5 favorable, 1 not, 5 authors | 37%7 favorable, 12 not, 19 authors | 45%5 favorable, 6 not, 11 authors | 41%7 favorable, 10 not, 17 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | 80%4 favorable, 1 not, 5 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | No accounts yet | 85%23 favorable, 4 not, 27 authors | 57%4 favorable, 3 not, 7 authors | Only praise on record1 favorable, 0 not, 1 author | 74%14 favorable, 5 not, 19 authors | 88%14 favorable, 2 not, 16 authors | 46%6 favorable, 7 not, 13 authors | 44%4 favorable, 5 not, 9 authors | 60%3 favorable, 2 not, 5 authors | 44%4 favorable, 5 not, 9 authors | 57%4 favorable, 3 not, 7 authors | 31%4 favorable, 9 not, 13 authors | 63%5 favorable, 3 not, 8 authors | 17%1 favorable, 5 not, 6 authors | 36%4 favorable, 7 not, 11 authors | 73%8 favorable, 3 not, 11 authors | 78%7 favorable, 2 not, 9 authors | 75%6 favorable, 2 not, 8 authors | 45%5 favorable, 6 not, 11 authors | 61%19 favorable, 12 not, 31 authors | 53%10 favorable, 9 not, 17 authors | 35%6 favorable, 11 not, 16 authors | Needs 5 accounts from 3 authors2 favorable, 1 not, 3 authors | 68%21 favorable, 10 not, 30 authors | Only concerns on record0 favorable, 1 not, 1 author | 21%4 favorable, 15 not, 19 authors | Only concerns on record0 favorable, 2 not, 2 authors | No accounts yet | 21%3 favorable, 11 not, 14 authors | Only concerns on record0 favorable, 2 not, 2 authors | 29%5 favorable, 12 not, 17 authors | Needs 5 accounts from 3 authors1 favorable, 2 not, 3 authors | Only praise on record2 favorable, 0 not, 2 authors | 44%4 favorable, 5 not, 9 authors | 65%13 favorable, 7 not, 20 authors | 33%3 favorable, 6 not, 9 authors | 20%3 favorable, 12 not, 15 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | Needs 5 accounts from 3 authors3 favorable, 1 not, 4 authors | No accounts yet | 33%7 favorable, 14 not, 21 authors | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | Only concerns on record0 favorable, 4 not, 4 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 2 not, 2 authors | Only concerns on record0 favorable, 1 not, 1 author |
| Reliability | Only concerns on record0 favorable, 4 not, 4 authors | Only concerns on record0 favorable, 1 not, 1 author | 13%1 favorable, 7 not, 8 authors | Only concerns on record0 favorable, 5 not, 5 authors | 14%2 favorable, 12 not, 14 authors | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | Only concerns on record0 favorable, 2 not, 2 authors | Only concerns on record0 favorable, 4 not, 4 authors | Only concerns on record0 favorable, 4 not, 4 authors | 17%1 favorable, 5 not, 6 authors | Only concerns on record0 favorable, 3 not, 3 authors | 20%1 favorable, 4 not, 5 authors | 18%2 favorable, 9 not, 11 authors | 13%1 favorable, 7 not, 8 authors | 9%1 favorable, 10 not, 11 authors | 13%1 favorable, 7 not, 8 authors | 63%5 favorable, 3 not, 7 authors | 22%2 favorable, 7 not, 9 authors | 17%2 favorable, 10 not, 12 authors | 18%2 favorable, 9 not, 11 authors | 17%1 favorable, 5 not, 6 authors | 20%3 favorable, 12 not, 15 authors | 38%6 favorable, 10 not, 16 authors | 29%2 favorable, 5 not, 7 authors | 40%4 favorable, 6 not, 10 authors | 5%1 favorable, 18 not, 19 authors | 15%3 favorable, 17 not, 20 authors | Only concerns on record0 favorable, 5 not, 5 authors | 14%3 favorable, 19 not, 22 authors | Only concerns on record0 favorable, 1 not, 1 author | 42%5 favorable, 7 not, 12 authors | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | 8%1 favorable, 12 not, 13 authors | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 1 not, 2 authors | 38%3 favorable, 5 not, 8 authors | Only concerns on record0 favorable, 4 not, 4 authors | 22%2 favorable, 7 not, 9 authors | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | 60%3 favorable, 2 not, 5 authors | 33%2 favorable, 4 not, 5 authors | Only concerns on record0 favorable, 7 not, 7 authors | Only concerns on record0 favorable, 4 not, 4 authors | Only concerns on record0 favorable, 1 not, 1 author | No accounts yet | Only concerns on record0 favorable, 2 not, 2 authors | Only concerns on record0 favorable, 1 not, 1 author | Needs 5 accounts from 3 authors1 favorable, 3 not, 4 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 9 not, 9 authors | Only concerns on record0 favorable, 1 not, 1 author | Only concerns on record0 favorable, 2 not, 2 authors | No accounts yet | No accounts yet | Only concerns on record0 favorable, 1 not, 1 author |
GILD searched Hacker News, GitHub and Reddit for accounts that name GPT-5.6 Sol.
GPT-5.6-Sol High wrote the grammar that worked. It was tragically bloated, poorly factored, and multiple grammar problems were masked by parse actions.
Because It's Not Fun Enough: why languages fail. klibertp, Hacker News commenter, self-described, Aug 10, 2026. GPT-5.6-Sol High rewriting an INI file parser as a PyParsing grammar, then translating it to Smalltalk's PetitParser.
It worked solo for 4-5 hours and in my testing it works great.
What's the largest software project AI can complete on its own?. linsomniac, Hacker News commenter, self-described, Aug 4, 2026. gpt-5.6-sol at xhigh in Codex, building a bi-directional rsync without the Unison database.
The agent had written 25,000+ LoC in the worktree.
GPT-5.6 Sol Pricing Cut by 50% on OpenRouter. enraged_camel, Hacker News commenter, self-described, Aug 18, 2026. 5.6 Sol (GPT-5.6 Sol) implementing a small to medium ticket to simplify part of an auth system, from an approved plan.
Open AI's GPT-5.6 Sol dominates. It found all vulnerabilities at a very affordable $0.70 per PR.
Grok 4.5 and GPT5.6 beat Anthropic for finding security vulnerabilities in PRs. pcollins123, Hacker News poster sharing the study of the team behind docs.damsecure.ai, self-described, Jul 12, 2026. GPT-5.6 Sol on 10 pull requests with one planted access-control bug each, five runs per model, against Fable and eight other models.
The output is excellent but just a heads up that it consumes a lot of quota!
GPT-5.6. ekzy, Hacker News commenter, self-described, Jul 9, 2026. gpt-5.6 sol at high on the Plus plan, analyzing a vibe-coded codebase of about 50k LoC and writing a plan to make it production ready.
an assistant response began normally and then appended a fabricated block headed `###Model Set Context`.
gpt-5.6-sol appends fabricated Model Set Context scaffold to normal answer. asavs, oh-my-pi user, GitHub issue author, self-described, Sep 11, 2026. gpt-5.6-sol through the openai-codex provider in a long oh-my-pi (OMP 18.1.17) coding session.
The model repeatedly inspects the same small source regions through different successful `read` and `exec` commands, never performs the requested edit, and never returns a final answer.
[Bug]: gpt-5.6-sol enters mixed read/exec exploration loops that evade recovery. Adam-Researchh, OpenClaw user, GitHub issue author, self-described, Aug 23, 2026. openai/gpt-5.6-sol at high thinking through the OpenClaw 2026.6.34 runtime on narrow source-edit tasks.
every time I use GPT-5.6 to add a new feature, something that was already working breaks.
I'm waiting for GPT-6 to clean up the mess GPT-5.6 Sol has left behind in my project.. u/nobodyreadusernames, r/codex poster, self-described, Aug 24, 2026. GPT-5.6 Sol in Codex adding new features to the author's project.
composer 2.5 had more bugs fixed than GPT-5.6 Sol Medium, which performed pretty bad fot the price.
I tested Grok 4.5 vs Composer 2.5. u/kodka, r/cursor poster, self-described, Jul 15, 2026. GPT-5.6 Sol Medium in Cursor on bugs in a complex Terraform and AWS codebase that Opus 4.8 high had already solved on a separate branch, against Composer 2.5 and Grok 4.5 high.
It found all vulnerabilities at a very affordable $0.70 per PR. For comparison Fable only found 88% and cost $3.61 per PR.
Grok 4.5 and GPT5.6 beat Anthropic for finding security vulnerabilities in PRs. pcollins123, Hacker News poster sharing the study of the team behind docs.damsecure.ai, self-described, Jul 12, 2026. GPT-5.6 Sol on 10 pull requests with one planted access-control bug each, five runs per model, against Fable and eight other models.
I left 5.6 Sol Ultra standard speed run for ~23 hours yesterday/today on a project and used 80% of the weekly usage. 74 subagent tasks and ~2.5 billion tokens for my $200 20x Pro plan.
OpenAI begins rolling out GPT-6 Astra. zamadatix, Hacker News commenter, self-described, Sep 3, 2026. 5.6 Sol (GPT-5.6 Sol) Ultra at standard speed for about 23 hours on a project, on a $200 20x Pro plan, against Fable 5 Max at work.
It ran for ~15min and consumed 95% of my 5h quota
GPT-5.6. ekzy, Hacker News commenter, self-described, Jul 9, 2026. gpt-5.6 sol at high on the Plus plan, analyzing a vibe-coded codebase of about 50k LoC and writing a plan to make it production ready.
it lasts for doing same tasks as 2.5-3 weekly limits of Codex on 5.6 Sol did (using xhigh on both Sol and Grok); I needed 3x$200 Codex subscriptions to cover my weekly usage.
Grok 4.7. andreyvit, Hacker News commenter, self-described, Sep 21, 2026. Codex on 5.6 Sol (GPT-5.6 Sol) at xhigh for a week of the author's work, against a $300 Grok SuperHeavy subscription at xhigh on the same tasks.
I calculated a 5.6 sol coding session the other day ... $680+ USD ... and it actually destroyed the codebase it was working on during that session
GPT-5.6 Sol Pricing Cut by 50% on OpenRouter. johnnyApplePRNG, Hacker News commenter, self-described, Aug 18, 2026. a 5.6 sol (GPT-5.6 Sol) coding session, priced by the author.
gpt-5.6-sol xhigh 3.5 hours of straight work and only 3% used?! Waaay better! Before the reset 3 hours I was down to about 30% on the same task and time.
Wow Waaay better... gpt-5.6-sol xhigh, 3.5 Hours and Only 3% Used. Fixed for everyone?. u/digitalml, r/codex poster on the $200 plan, self-described, Jul 29, 2026. gpt-5.6-sol (GPT-5.6 Sol) at xhigh in Codex on the $200 plan, the same task before and after OpenAI's usage fix.
the weekly API-equivalent allowance fell from $2,500+ with GPT-5.6 Sol to about $1,200 with GPT-6 Astra .
GPT-6 Astra burns quota 4+ times faster than GPT-5.6 Sol. u/Frequent-Goal4901, r/codex poster with two Pro 20x accounts, self-described, Sep 10, 2026. GPT-5.6 Sol in Codex Desktop and CLI on two Pro 20x accounts, against GPT-6 Astra.
GPT-5.6 Sol: 102.6 tokens/s (Normal), 168.1 (Fast)
GPT-6.1 Sol is 4.6x slower than GPT-5.6 Sol. Are we really getting cheaper models, or just slower ones?. u/Hot_Season8992, r/codex poster, self-described, Oct 13, 2026. GPT-5.6 Sol at xhigh in Normal and Fast modes on the author's internal speed benchmarks, against GPT-6 Sol, GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna.
Every turn using `gpt-5.6-sol` with reasoning effort **low (Light)** fails within about 1 second with: ``` exceeded retry limit, last status: 429 Too Many Requests
gpt-5.6-sol with low (Light) reasoning effort returns 429 on every request; medium works. Sopio Berishvili, Codex Desktop user on ChatGPT Business, GitHub issue author, self-described, Oct 20, 2026. gpt-5.6-sol at low (Light) reasoning effort in Codex Desktop on ChatGPT Business.
This is not an isolated transient failure: gpt-5.6-sol remains unusable while gpt-5.6-luna works.
Selected model is at capacity. Please try a different model. 5.6-sol unavailable for an extended period while 5.6-luna remains available. weidadeda, Codex desktop user on Plus, GitHub issue author, self-described, Oct 21, 2026. gpt-5.6-sol in the Codex desktop app on a Plus account.
gpt-5.6-sol consistently rejects harmless prompts with the following error: Invalid prompt: your prompt was flagged as potentially violating our usage policy.
gpt-5.6-sol incorrectly flags harmless prompts as policy violations. ZhouLingLuo, Codex CLI user on the 20x plan, GitHub issue author, self-described, Sep 17, 2026. gpt-5.6-sol in Codex CLI 0.154.0 on the 20x plan.
in Codex, GPT-5.6-Sol and IIRC older 5.5 models can stop dead in the track a couple times a day saying "model is at capacity" (paraphrasing).
Elevated errors on Claude Opus 5. oefrha, Hacker News commenter, self-described, Jul 27, 2026. GPT-5.6-Sol in Codex, run unsupervised.
No published account yet for Tool use and structured output; Long context; Developer experience.