Google announced wider Gemini 4 Carbon availability on November 10. Paying developers can use it through the Gemini API and AI Studio, while enterprise routes include Gemini for business. Access is also rolling out to Google AI Ultra subscribers in Antigravity, the Gemini app and AI Mode in Search; this does not establish access for every free or lower-tier user.

Public access and cyber access differ

The public model starts at $2 input and $10 output per million tokens. Google dates the introductory period through November 30, followed by $4/$20, and explicitly limits that footnote to public-access Carbon. The separate Fairwind route for cybersecurity defenders remains application-based.

Exact limits and a preview

The gemini-4-carbon card specifies a combined input/output window of 1,048,576 tokens. Ordinary synchronous output is capped at 65,536; larger output requires the separate long-decode mode. This is not an ordinary one-million-token output allowance.

Google also previews /swarm in Antigravity, coordinating teams of agents. Preview status is distinct from a universally available feature. Vendor demonstrations and selected benchmark claims do not replace the independently dated measurements on our Benchmarks page.