Gemini 4 Carbon opens to all at rival prices, doubling on 1 December

single source· 1 articles · confidence: medium · first seen 2026-11-10 20:09 UTC

What this means for you

If you are planning to build on Carbon, budget for $4/$20 from 1 December — the launch rate is a short window, not a tier. The post carries no benchmark scores, so the quality claim rests on one user's impressions and a vendor demo.

Google's Gemini 4 Carbon is now available to anyone, two weeks after it was announced for a restricted group the post describes as cyber defenders. The llm-gemini 0.36 plugin adds access. Launch pricing is $2 per million input tokens and $10 per million output tokens, the same as GPT-6.1 Sol and Claude Sonnet 5.5, and is scheduled to double to $4/$20 on 1 December, matching Opus 5.5. Simon Willison tested it through Google's Antigravity IDE; Sundar Pichai publicised a demo in which subagents built a browser game.

Models in this story

Key facts

  • ·Gemini 4 Carbon became available to all users on 10 November 2026, having previously been limited to a restricted group. source
  • ·Launch pricing is $2 per million input tokens and $10 per million output tokens. source
  • ·The price is scheduled to double to $4 per million input and $20 per million output on 1 December. source
  • ·The llm-gemini 0.36 plugin release adds access to Carbon. source
  • ·The model offers low, medium and high thinking-effort settings — how much compute it spends before answering — and defaults to medium. source
  • ·Sundar Pichai publicised a demo in which Antigravity's /swarm feature coordinated subagents to build a browser game, playable in AI Studio. source

What the sources say

  • Simon Willison (press) — Plugin release note carrying the launch pricing, the doubling date, and a hands-on subagent game demo.

Sources

The original reporting. Follow these — they did the work.

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