Google releases Gemini 4 Hydrogen for fast coding and agent workflows

Google introduced Gemini 4 Hydrogen, a new member of its Gemini 4 family built for rapid execution in everyday coding and agentic work, while Gemini 4 Carbon and Gemini 4 Argon remain the options for long-horizon reasoning. Koray Kavukcuoglu, SVP at Google DeepMind, said Hydrogen is priced flat across its 1 million-token context window at $1.50 per million input tokens and $7.50 per million output tokens, with four thinking levels including a new xhigh tier. It is available in Google AI Studio, the Gemini API, the Gemini app, Google Search, Gemini for business, and Google Antigravity for paid AI Pro and Ultra subscribers. Google also launched Orchestrator in Antigravity, which switches between models inside a single session.