Gemini 4 Carbon rollout begins, with AI Ultra users first in line
The Gemini 4 Carbon release date has arrived: AI Ultra subscribers get the model first in the Gemini app, and API prices start at $2 per million input tokens.
Google has begun rolling out Gemini 4 Carbon to the general public, about two weeks after its October 28 announcement.
AI Ultra subscribers, who pay $99.99 a month, get Carbon first in the Gemini app. AI Pro users, at $20 a month, still use Gemini 4 Argon.
The developer API price starts at $2 per million input tokens and $10 per million output tokens, and doubles to $4 and $20 after the introductory period.
Google is previewing an agent swarm feature on Antigravity that turns one prompt into a coordinated team of AI agents.
Google has not said when or whether AI Pro subscribers and free users will get Carbon.