Google DeepMind introduced Gemini 4 Hydrogen on November 12, 2026, rolling it out across developer, enterprise and consumer AI surfaces.
What is Gemini 4 Hydrogen
Google DeepMind introduced Gemini 4 Hydrogen on November 12, 2026, saying it brings cutting-edge intelligence to everyone with speed and efficiency for everyday coding and agentic workflows. The company said its frontier models, Gemini 4 Carbon and Gemini 4 Argon, excel at deep, long-horizon reasoning, while Hydrogen is built for rapid execution across diverse agentic workflows.
Google DeepMind said Hydrogen can stand on its own as a model for everyday work or pair with Carbon and Argon as a high-efficiency execution engine in multi-model workflows. It also said the new Orchestrator in Google Antigravity can dynamically switch between models like Carbon and Hydrogen within the same session.
Performance, benchmarks and pricing
Google DeepMind said Hydrogen surpassed Argon on the Artificial Analysis Intelligence Index at its default high thinking level, with 51 versus 50 and reaching 54 at its highest xhigh thinking setting, while often completing tasks faster than models in its class. It said Hydrogen finished tasks 2.5 times faster at its high default setting and more than tripled Terminal-Bench 4.1 scores, from 18.2% to 57%, among other claims.
Google DeepMind said Hydrogen is priced flat across its entire 1 million-token context window at $1.50 per million input tokens and $7.50 per million output tokens. It said the model has four thinking levels: low, medium, high, and a new xhigh tier.
Availability and safety
Starting today, Google DeepMind said Hydrogen is rolling out globally across developer, enterprise and consumer surfaces. For developers, it said, build with the Gemini API in AI Studio and the paid tier in Android Studio, try it in AI Studio, and if a user is a paid Google AI Pro or Ultra subscriber, try it in Google Antigravity.
Google DeepMind said Hydrogen brings improvements from its latest Gemini 4 safety and security stack to its broadest audience yet, combining built-in training with real-time surface safeguards. It said Hydrogen reduces overreach in agentic tasks by up to 81% and under-service by up to 79%, and cuts misaligned actions and task shortcutting across tool-use and coding evaluations by 12x. It also said Hydrogen preserves 99.9% chain-of-thought legibility with zero deceptive reasoning edits across more than 200,000 audited turns.
Key facts and where they come from
- Google DeepMind introduced Gemini 4 Hydrogen.
Today, we’re introducing Gemini 4 Hydrogen, bringing cutting-edge intelligence to everyone — with speed and efficiency for everyday coding and agentic workflows.
- Hydrogen surpassed Gemini 4 Argon on the Artificial Analysis Intelligence Index at its default high thinking level.
Hydrogen surpasses Argon on the Artificial Analysis Intelligence Index at its default high thinking level (51 vs. 50, and reaching 54 at its highest xhigh thinking setting)
- Gemini 4 Hydrogen pricing.
Gemini 4 Hydrogen is priced flat across its entire 1 million-token context window at $1.50 per million input tokens and $7.50 per million output tokens.
- Gemini 4 Hydrogen availability.
Gemini 4 Hydrogen, available to everyone today
