How does Gemini API compare with the alternatives?
Gemini 4 Argon scores 50 on the Artificial Analysis Intelligence Index v5.0 (Oct 27, 2026) at about two fifths of Sonnet 5.5's cost per task. Opus 5.5 holds the top score, and Haiku 5.5 beats Gemini 3.8 Flash for less.
GPT-6.1 Sol outscores both Gemini 4 Argon and Gemini 3.8 Flash on the Artificial Analysis Intelligence Index v5.0 (Oct 27, 2026) at a lower cost per task. Argon's introductory price ends on November 30, 2026.
Slack runs Slack AI on Bedrock and added Google Cloud for Gemini in early 2026, and Wealthsimple added Gemini for long context before Bedrock. Bedrock does not sell Gemini. At GILD's 60,000-task workload, Gemini 4 Argon costs US$1,602 a month until November 30, 2026, against US$1,632 for Claude Sonnet 5.5 on Bedrock.
Start on an AI Studio key for speed and the free tier, then move to the Agent Platform, formerly Vertex AI, for service accounts, regional endpoints and Provisioned Throughput. Pydantic's live tests found the Google Cloud route more reliable, and Evan Lin moved a production bot there after a spending-cap 429. Global-endpoint prices match.
