Google Ships Gemini 4 Carbon and a Swarm of Coding Agents

Google made Gemini 4 Carbon generally available on November 10, 2026. In the Gemini app and AI Mode in Search it is for Google AI Ultra subscribers, a plan that starts at $99.99 a month in the US. Developers pay $2 and $10 per million input and output tokens through November 30, then double. A preview feature called /swarm runs teams of coding agents in Google Antigravity.