Gemini 4 Hydrogen

Generally Available

Gemini 4 Hydrogen is a Gemini 4 model for coding and agent work, separate from Gemini 4 Carbon and Gemini 4 Argon. Google's Nov. 12, 2026 post says it is rolling out in the Gemini API, AI Studio, Android Studio, Gemini for business, the Gemini app, and Google Search, with Antigravity for paid Pro and Ultra subscribers. The model page lists id gemini-4-hydrogen, text output, a unified context window of 1,048,576 tokens, default synchronous output of 65,536 tokens, and long decode up to 1,048,576. The post prices it at $1.50 per million input tokens and $7.50 per million output tokens. Free Gemini app access is through automatic model selection. Google says the default high thinking level scores 51 on the Artificial Analysis Intelligence Index, versus 50 for Argon, and 54 at xhigh. Those scores are the company's.

Google DeepMind profile Source: blog.google

Latest update Nov 13, 2026

Current status

Nov. 12, 2026 rollout in the API, Gemini for business, the Gemini app, and Search. Antigravity is for paid Pro and Ultra. Free app access is automatic model selection. Model id gemini-4-hydrogen.

In the news1

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Nov 132026
Google opens Gemini 4 Hydrogen in the API, app, and Search
On Nov. 12, 2026 Google said Gemini 4 Hydrogen is rolling out in the Gemini API, AI Studio, Gemini for business, the Gemini app, and Google Search, and that paid Google AI Pro and Ultra subscribers can use it in Antigravity. The company prices it at $1.50 per million input tokens and $7.50 per million output tokens. The model page lists id gemini-4-hydrogen, a unified 1,048,576-token context window, default output of 65,536 tokens, and long decode up to 1,048,576. Free Gemini app users get it through automatic model selection, and Google says the default high setting scores 51 on the Artificial Analysis Intelligence Index, against 50 for Gemini 4 Argon.
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