Google launches Gemini 4 Hydrogen for fast agentic coding
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Today, we’re growing the Gemini 4 model series by introducing Gemini 4 Hydrogen. While Gemini 4 Carbon tackles your hardest problems, Hydrogen brings cutting-edge intelligence to everyone — with speed and efficiency for everyday coding and agentic workflows, surpassing Argon on the Artificial Analysis Intelligence Index at its default thinking level, at 2.5x the speed of Gemini 3.8 Flash, with tunable thinking levels built to work alongside Carbon in @antigravity. Watch how the 3D Medic Managed Agent app built in @GoogleAIStudio uses Gemini 4 Hydrogen to inspect your 3D files, catch errors, and patch them before export.
A new Gemini 4 tier targets everyday coding and loops with tunable thinking levels and a claimed 2.5x speed gain over Gemini 3.8 Flash. It gives you a cheaper, faster option to pair with Carbon.
- AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
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