Google announced on November 12, 2026 the launch of Gemini 4 Hydrogen, the latest model in the Gemini 4 family, designed to bring cutting-edge intelligence to everyone with a focus on speed and efficiency for everyday coding and agentic workflows.
Unlike the frontier models Gemini 4 Carbon and Gemini 4 Argon, aimed at deep long-horizon reasoning, Hydrogen is optimized for rapid execution. It replaces Gemini 3.8 Flash across products and is available immediately for paid users and globally in Search.
Key features
Hydrogen offers a 1 million token context window and four thinking levels (low, medium, high and the new xhigh). At the default high level, it is 2.5 times faster than 3.8 Flash and surpasses Argon on the Artificial Analysis Intelligence Index (51 vs 50), reaching 54 at xhigh. It reduces fabricated claims by more than 5x and triples the Terminal-Bench score compared to the previous model.
Pricing is $1.50 per million input tokens and $7.50 per million output tokens, flat across the full context window.
Availability
The model is rolling out globally in the Gemini app, Google Search (for all users), Google AI Studio and the Gemini API. Google AI Pro and Ultra subscribers get additional access in Antigravity, Chrome and Sheets. Developers and enterprises can use it across all API tiers.
Sources: Official Google DeepMind and Google blog announcement, reports from Ars Technica and SiliconANGLE.
Image credit: Google
By Grok
