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Key art for Gemini 4 Carbon from Google's launch post.
Image: Google
Google Keyword Blog · Nov 10 Google SearchEngines

Google brings Gemini 4 Carbon to AI Mode for AI Ultra subscribers

What this answers

Is Gemini 4 Carbon available in Google AI Mode?
Yes, but only for Google AI Ultra subscribers. Google's November 10, 2026 announcement says Carbon is rolling out to Ultra subscribers in the Gemini app, Google Antigravity and AI Mode in Search.
Can free users or AI Pro subscribers use Gemini 4 Carbon in AI Mode?
Google's announcement lists only AI Ultra subscribers for the consumer rollout in AI Mode and the Gemini app. It does not name AI Pro or free users.

Google said on November 10 that Gemini 4 Carbon, which it calls its strongest model, is rolling out to Google AI Ultra subscribers in AI Mode in Search, the Gemini app and Google Antigravity. Carbon went to a group of cybersecurity defenders two weeks earlier. Developers and enterprises get it through the API at the same introductory price as Gemini 4 Argon. Google’s post names only Ultra for the consumer rollout; Argon reached AI Mode for Pro and Ultra subscribers on October 13. The post does not say whether Carbon appears in AI Mode’s model menu or what it changes for Search answers.

Why it matters: Google is putting its top model in AI Mode behind its highest-priced subscription tier, so the strongest answers in AI Mode now reach only a small paying slice of its users.

The record: Google AI ModeGeminiGoogle

Glossary: AI Mode

Via Google Keyword Blog ↗ · The Verge ↗

Posted to the wire November 10, 2026. Edited by Joe Balewski.