Google releases Gemini 4 Carbon, its 'strongest model', to AI Ultra users and developers at $2 per million tokens
After a limited preview for cyber defenders in October, Carbon is now in the Gemini app, AI Mode in Search and the API.
- Intro price till 30 November
- Later price: $4 / $20 per million tokens
- Gemini 3.1 Pro removed from the app
Who can use it
Google AI Ultra subscribers are getting Gemini 4 Carbon in the Gemini app, AI Mode in Search and the Antigravity coding tool. Paying developers and businesses can use it through the API in AI Studio. In the Gemini app, Carbon is labelled for 'most complex work', Gemini 4 Argon stays for everyday use, and the older Gemini 3.1 Pro has been dropped.
Price and performance
The introductory API price is $2 per million input tokens and $10 per million output tokens until 30 November, doubling to $4 and $20 after that. Google says Carbon topped coding and automation tests such as CursorBench 4.0 at less than half the cost per task of the next-best rival, and blocked 99% of simulated cyberattacks in its red-team tests.
