GILD verdict
Pick the DeepSeek API when price per task decides and your legal team accepts data stored in China under PRC-law terms.
The Claude API is the better choice when data needs zero retention, US-only inference, or a cloud route, or the work needs a frontier model. Price Haiku 5.5 too: at the workload above it costs US$450 a month against US$1,200 at DeepSeek's peak rates and US$600 off-peak.
DeepSeek V4.1 Flash costs a fraction of Claude Sonnet 5.5 per token, and Claude Haiku 5.5 undercuts DeepSeek's peak rates for prompts up to 100,000 tokens. The two APIs differ most on data: DeepSeek stores data in the People's Republic of China and trains its models on it, while Anthropic deletes API data within 30 days, offers zero data retention by request, and sells US-only inference.
Choosing between DeepSeek API and Claude API
Choose DeepSeek API if
- Price per task decides, and data may be stored in China.
- Long agent sessions reuse prompt prefixes, and bulk work can run off-peak.
- You want open weights you could later host elsewhere.
Choose Claude API if
- Data needs zero retention, US-only inference, or a cloud route such as Amazon Bedrock.
- You need Claude's frontier models for the hardest agent work.
- Spend must follow usage tiers with monthly caps.
Side by side
| Dimension | DeepSeek API | Claude API |
|---|---|---|
| What you payList prices in US dollars. DeepSeek checked October 28, 2026; Anthropic as the Claude API Hub checked it on October 25, 2026. | deepseek-flash at peak: US$0.30 per 1M cache-miss input tokens, US$0.006 cache-hit, and US$1.20 output; deepseek-v4-pro US$1.32, US$0.044, and US$3.96; off-peak rates half; prepaid pay-as-you-go balance1 | Haiku 5.5 US$0.10 input and US$0.50 output per 1M tokens for prompts up to 100,000 tokens, then US$0.50 and US$2.50; Sonnet 5.5 US$2 and US$10; Opus 5.5 US$4 and US$2067 |
| Monthly cost for one workload (GILD calculation)GILD calculation from DeepSeek's pricing page (Oct 28, 2026) and Anthropic's pricing as the Claude API Hub recorded it (Oct 25, 2026). Inputs: 1,000,000 requests, 2,000 input tokens with no cache hits and 500 output tokens each. | At 1,000,000 requests a month of 2,000 cache-miss input and 500 output tokens on deepseek-flash: US$1,200 at peak rates, or US$600 off-peak1 | The same workload: US$9,000 on Sonnet 5.5, or US$450 on Haiku 5.5, whose prompts stay under 100,000 tokens67 |
| Discounts | Off-peak rates half the peak rates outside 01:00 to 04:00 and 06:00 to 10:00 UTC on weekdays; cache hits at US$0.006 per 1M input tokens at peak1 | Cache reads at 5% of the input price on Opus 5.5 and Sonnet 5.5; the Batch API halves token prices89 |
| Context and output | 1M tokens of context and up to 384K output tokens on both models1 | 1M tokens on all four current models, with up to 128K output tokens10 |
| Data retention and training | Personal data used to train DeepSeek's models, with an opt-out where local law grants one, and retained as long as needed to provide the services4 | Inputs and outputs deleted within 30 days by default and not used for training without permission; zero data retention by request11 |
| Data location | Personal data collected, processed, and stored in the People's Republic of China; terms governed by PRC law45 | US-only inference available at a 10% surcharge12 |
| Rate limits | Per-account concurrency of 2,500 for deepseek-flash and 500 for deepseek-v4-pro, HTTP 429 above that, raised on request at no cost2 | Usage tiers with monthly spend caps from US$500 on Start to US$200,000 on Scale13 |
| Where it runs | DeepSeek's hosted API in OpenAI- and Anthropic-compatible formats3 | Anthropic's API, plus Amazon Bedrock, Google Cloud, and Microsoft Foundry614 |
| Choose it if | Choose the DeepSeek API if price per task decides and your legal team accepts data stored in China14 | Choose the Claude API if data needs zero retention or US-only inference, or you need a frontier model for the hardest work1112 |
What practitioners report, side by side
Each product's figures come from its own practitioners, for the group you pick.
Overall signal
All practitioners rate DeepSeek API +57, 27 points above Claude API at +30. Most of the gap is in praise, with 29 of DeepSeek API's 39 sources positive against 35 of Claude API's 75. DeepSeek API has 6 negative and Claude API 12.
The score counts the authors from all practitioners that take a side, one vote each with their latest view, and is how far positive votes lead negative ones, per 100 votes, so DeepSeek API's +57 rests on votes split 27 positive, 4 mixed and 6 negative and Claude API's +30 on 32, 27 and 11.
A lead of a fifth of the votes reads positive and a lead of half strong positive, with the same lines below zero. The dots show each source, positive, mixed, negative. Run a pilot on your own prompts to measure output quality and cost per task.
Footprint on the AI Application Platform stack
They differ on three of 9 layers. Claude API owns one that DeepSeek API does not. Coverage is each product's placement on this stack, as its product page shows it. Core is a job the product owns; Supports and Touches are jobs it helps with. Coverage says nothing about how well a product does them.
| Layer | DeepSeek API | Claude API |
|---|---|---|
| Build | ||
| Orchestration | Touches | Supports |
| Tool use | Supports | Core |
| Operate | ||
| Cloud deployment | Touches | Supports |
The 6 layers where they match
| Layer | DeepSeek API | Claude API |
|---|---|---|
| Model | ||
| Model APIs | Core | Core |
| Model gateway | Touches | Touches |
| Data | ||
| Retrieval | Supports | Supports |
| Evaluate | ||
| Evaluation | Touches | Touches |
| Operate | ||
| Observability | Touches | Touches |
| Guardrails | Touches | Touches |
What practitioners praise
Among all practitioners, Claude API alone has five praise themes that reach 5 sources from 3 authors. Model Quality and Cost Efficiency lead, at 17 of 21 and 16 of 18. Price per Task & Cache Hits reaches 5 sources from 3 authors only for DeepSeek API, at 25 of 25. Claude API needs a pilot on the same prompts before you choose on it.
| Praised for | DeepSeek API | Claude API |
|---|---|---|
| Price per Task & Cache Hits | 25 of 25 | Not a theme in its sources |
| Model Quality | Not a theme in its sources | 17 of 21 |
| Cost Efficiency | Not a theme in its sources | 16 of 18 |
| Tool Use & Structured Output | Not a theme in its sources | 11 of 14 |
| Speed | 4 of 4 so far | 11 of 15 |
| Developer Experience | Not a theme in its sources | 4 of 7 |
Each count is the sources that praise a theme, or raise it as a concern, out of those that discuss it. A row pairs the two products when both carry a theme under the same or an equivalent name.
A count ending in "so far" has under 5 sources from 3 authors among all practitioners. "Not a theme in its sources" means GILD found no theme of that name in that product's sources.
What practitioners raise as concerns
Among all practitioners, Claude API alone has eight concern themes that reach 5 sources from 3 authors. Token Cost and Tool Calling Failures lead, at 17 of 19 and 10 of 13. Output Bugs, Latency & Errors reaches 5 sources from 3 authors only for DeepSeek API, at 5 of 5. Claude API needs a pilot on the same prompts before you choose on it.
| Raised as a concern | DeepSeek API | Claude API |
|---|---|---|
| Output Bugs, Latency & Errors | 5 of 5 | Not a theme in its sources |
| Token Cost | Not a theme in its sources | 17 of 19 |
| Tool Calling Failures | Not a theme in its sources | 10 of 13 |
| Model Changes | Not a theme in its sources | 9 of 12 |
| Long-Context Limits | Not a theme in its sources | 8 of 8 |
| Setup & SDK Friction | Not a theme in its sources | 7 of 9 |
| Latency | Not a theme in its sources | 6 of 10 |
| Capacity & Rate Limits | Not a theme in its sources | 5 of 8 |
| Data Handling | Not a theme in its sources | 3 of 5 |
14 sources
- DeepSeek API docs: Models and pricing
- DeepSeek API docs: Rate limit and isolation
- DeepSeek API docs: Your first API call
- DeepSeek privacy policy
- DeepSeek Open Platform terms of service (effective Apr 29, 2026)
- Claude API docs: Pricing
- Anthropic: Claude Haiku 5.5
- Claude API docs: Prompt caching
- Claude API docs: Batch processing
- Claude API docs: Models overview
- Claude API docs: API and data retention
- Claude API docs: Data residency
- Claude API docs: Rate limits
- Claude API docs: Claude in Amazon Bedrock