Google releases Gemini 4 Carbon with $2 per million input token pricing

Google has made its Gemini 4 Carbon model available through the Gemini API, Gemini for business, Google AI Ultra, Gemini Antigravity, the Gemini app and AI Mode in Search. The introductory API price is $2 per million input tokens and $10 per million output tokens, with adjustable thinking levels that let users trade off quality, latency and cost. In Zapier's simulated business-workflow tests, Carbon completed 53.9% of 657 tasks at high effort, slightly ahead of Gemini 4 Argon at 51.3%, at roughly $2.12 per task. Anthropic counters that its Claude Fable 5.2 beats Carbon on several coding and scientific benchmarks, though Carbon leads on Anthropic's own business-workflow comparison. Analysts note that buyers are increasingly judging models by the total cost of completed workflows, including retries and human review, rather than by benchmarks or token prices alone.