Google expands Gemini 4 Carbon access to paid API users and previews swarm feature

Google has made Gemini 4 Carbon, its latest frontier AI model, available to paid API users and AI Ultra subscribers. The rollout follows a two-week earlier release to cybersecurity professionals.

The company is also previewing a new swarm feature in a product called Antigravity, which appears to enable coordinated multi-model AI interactions.

The move expands access for developers, enterprises, scientists and consumers to test the model in production settings.