Google releases Gemini 4 Carbon to everyone

Google releases Gemini 4 Carbon to paying developers, enterprises and AI Ultra subscribers.

According to Google DeepMind, Carbon became available on Nov. 10, 2026, two weeks after a limited release to cybersecurity defenders through its Fairwind Program. Google calls it its strongest model, with frontier performance in cybersecurity and long-horizon agentic workflows.

Google is also previewing /swarm in Antigravity, which turns a single prompt into a coordinated team of agents. Developers can assign Carbon to roles such as architectural design, coordination and auditing, with adversarial verifiers testing every change.

Carbon is available through the API in Google AI Studio and Gemini for business for all paying developers and enterprises, and is rolling out to all AI Ultra subscribers in Antigravity, the Gemini app and AI Mode in Search. Intro pricing is $2 per million input tokens and $10 per million output tokens, the same as Argon. Per 9to5Google, that rises to $4 and $20 after Nov. 30, and scientists can apply for 6 months of free access to Argon and Carbon via Antigravity's top usage tier, subject to eligibility, capacity and selection.

The Verge reports it is not clear when, or if, Carbon will reach lower-tier subscribers or free users. It also notes Google's cited benchmarks put Carbon behind Anthropic's Fable 5.2 on some measures.

The facts we checked

According to Google DeepMind's announcement, The Verge, Engadget and 9to5Google

1. Google made Gemini 4 Carbon available to developers, enterprises, scientists and consumers on Nov. 10, 2026.Fact · Google DeepMind
2. Two weeks earlier, Google released Carbon to a set of cybersecurity defenders through its Fairwind Program.Fact · Google DeepMind
3. Google calls Carbon its strongest model, with frontier performance in cybersecurity and long-horizon agentic workflows.Fact · Google DeepMind
4. Google says Argon "remains the ideal choice for the majority of software engineering and knowledge work, while Carbon is built for tasks that test the limits of a model's intelligence."Quote · Google DeepMind
5. Google is previewing /swarm in Google Antigravity, its agentic development platform. It turns a single prompt "into a coordinated team of agents you can track in real time."Quote · Google DeepMind
6. With /swarm, developers can assign Carbon to roles such as architectural design, coordination and auditing. It is paired with faster, lighter models across parallel isolated workspaces and adversarial verifiers that test every change.Fact · Google DeepMind
7. Carbon is available through the API in Google AI Studio and Gemini for business for all paying developers and enterprises.Fact · Google DeepMind
8. Carbon is rolling out to all Google AI Ultra subscribers in Google Antigravity, the Gemini app and AI Mode in Search.Fact · Google DeepMind
9. The Verge reports it is not clear when, or if, Carbon will reach lower-tier subscribers or free users.Reported · The Verge
10. In the Gemini app's model picker, 4 Argon is labeled "Code & analysis" and 4 Carbon "Most complex work." Argon stays available to AI Pro and up, and the app has removed 3.1 Pro.Reported · 9to5Google
11. Introductory pricing is $2 per million input tokens and $10 per million output tokens, the same as Argon.Figure · Google DeepMind
12. After Nov. 30, Carbon will cost $4 per 1M input tokens and $20 per 1M output tokens.Reported · 9to5Google
13. Scientists can apply for free access to Argon and Carbon via Antigravity's highest usage tier for 6 months, onboarded on a rolling basis and subject to eligibility, capacity and selection.Reported · 9to5Google
14. The Verge notes that companies can and do cherry-pick benchmark results, and that Google's cited benchmarks put Carbon behind Anthropic's Fable 5.2 on some measures.Reported · The Verge

Sources

• Google DeepMindGemini 4 Carbon is now available
• The VergeGoogle releases Gemini 4 Carbon with agent ‘swarm’ feature
• EngadgetGoogle's Gemini 4 Carbon is now widely available around the world
• 9to5GoogleGemini 4 Carbon rolling out to Gemini app for AI Ultra, Argon remains