Google opens Gemini 4 Carbon to developers at $2 per million input tokens until December

Nov 10, 2026
Gemini 4 Carbon is now on the paid Gemini API in AI Studio and Android Studio; prices double to $4 input and $20 output per million tokens on 1 December.

Google is opening Gemini 4 Carbon to developers through the paid Gemini API tier in AI Studio and Android Studio, the company said on 10 November, two weeks after it unveiled the model. Google AI Ultra subscribers can also try the model in AI Studio and Google Antigravity, while its pricing page confirms there is no free API tier.

Gemini 4 Carbon is designed for sustained agent workflows involving software engineering, full-stack web development, scientific research and cybersecurity. It supports autonomous multi-step agents and long-decode generation of up to 1 million tokens, according to the pricing page.

Through November 30, API access costs $2 per million input tokens and $10 per million output tokens. Prices will rise to $4 for input and $20 for output on December 1. Output billing includes thinking tokens, and context caching costs $0.10 per million tokens until the price rise. Google calls Carbon its strongest model, with frontier performance in cybersecurity and long-horizon tasks.

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