Gemini 4 Hydrogen brings a fast agent model to every tier

Google introduced Gemini 4 Hydrogen on November 12 and is rolling it out across AI Studio, the Gemini API, enterprise products, the Gemini app and Search. It offers a one-million-token context at $1.50 per million input tokens and $7.50 per million output tokens. Google says Antigravity Orchestrator pairing Hydrogen with Carbon used 24% less quota and finished 19% faster on Terminal-Bench 4.0. Those benchmark, prompt-injection and bio-safety refusal figures are vendor-reported and still need independent reproduction.