Google has launched Gemini 4 Hydrogen, a fast Google DeepMind model for everyday coding and agentic workflows, rolling it out globally, including in India, from 12 November 2026. It is available in Google Search, the Gemini app, Google AI Studio, the Gemini API and Gemini for business, priced at $1.50 per million input tokens and $7.50 per million output tokens.

Hydrogen sits below Google’s frontier models, Gemini 4 Carbon, which opened to enterprises at $2 per million tokens, and Gemini 4 Argon. Google says those models handle deep, long-horizon reasoning, while Hydrogen is built for rapid execution.

What Gemini 4 Hydrogen offers developers and enterprises

In its launch announcement, Google positioned Hydrogen as a direct upgrade for teams using Gemini 3.8 Flash. The company reported these results:

• Tasks completed 2.5 times faster than Gemini 3.8 Flash at the default high thinking level
• A Terminal-Bench 4.1 score of 57%, against 18.2% for Gemini 3.8 Flash
• More than five times fewer fabricated claims, and better recovery when a tool call fails or a search returns nothing
• A score of 51 on the Artificial Analysis Intelligence Index at high thinking, ahead of Argon’s 50, rising to 54 at the top setting

Google said early partners testing graph, SQL and data-heavy enterprise workflows saw Hydrogen run 2x to 2.8x faster than Gemini 3.8 Flash while using 12% to 23% fewer tokens. Four thinking levels, low, medium, high and a new xhigh tier, let users pay only for the reasoning depth a task needs.

How Orchestrator splits work between AI models

Alongside the model, Google introduced Orchestrator in Google Antigravity, which switches between Carbon and Hydrogen within a single session. On Terminal-Bench 4.0, Google said Orchestrator came close to Carbon’s task success rate while using 24% less quota and finishing 19% faster on average. The pattern matters as AI agents begin to rival human developers in number on code platforms.

Why Gemini 4 Hydrogen matters for India

For Indian users, the most visible change is in Search. Google called Hydrogen “the biggest model upgrade to Search yet”, with better handling of multi-part questions and typos, more tables and images, and a wider range of links across all languages AI Mode supports. That follows Google’s move to bring ads in AI Mode to India, making AI answers a bigger factor in how brands are found.

For Indian developers and enterprises, the launch adds price pressure in the mid-tier model market. It arrives the same week OpenAI launched India inference residency for GPT-6 Luna, a sign that global AI labs are competing on both cost and deployment terms for Indian workloads.

Safety and availability

Google said Hydrogen cuts overreach in agentic tasks by up to 81% and is more than 2.3x more resilient to indirect prompt injection on the Gray Swan benchmark. Developers can use it through the Gemini API in AI Studio and Android Studio, and enterprises through Gemini for business and Google Antigravity. In the Google Search announcement, the company said Hydrogen is now live in Search for all users globally.

Key takeaways

• Google began rolling out Gemini 4 Hydrogen globally, including India, on 12 November 2026.
• The model costs $1.50 per million input tokens and $7.50 per million output tokens across a 1 million-token context window.
• Hydrogen now powers Google Search for all users and pairs with Gemini 4 Carbon through the new Orchestrator.

FAQ

Is Gemini 4 Hydrogen available in India?

Yes. Google said the model is rolling out globally across Google Search, the Gemini app, Google AI Studio, the Gemini API and Gemini for business.

How much does Gemini 4 Hydrogen cost?

API pricing is $1.50 per million input tokens and $7.50 per million output tokens, flat across the full 1 million-token context window.

How is Gemini 4 Hydrogen different from Gemini 4 Carbon?

Carbon is Google’s frontier model for deep, long-horizon reasoning, while Hydrogen is a faster, cheaper model for everyday coding and agentic execution.

Featured image: Gemini 4 Hydrogen key art. Photo: Google (press image, The Keyword blog)

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