Gemini 4 Hydrogen Ships at $1.50/$7.50 as Agent Daily Driver

Google released Gemini 4 Hydrogen on November 12, pricing it at $1.50 per million input tokens and $7.50 per million output tokens flat across a 1 million-token context window, with four configurable thinking levels: low, medium, high, and xhigh.

In the launch post on blog.google, the company calls Hydrogen "our daily driver for agentic workflows." It scores 51 on the Artificial Analysis Intelligence Index at the default high thinking level, climbing to 54 at xhigh, and the post reports 52.3% on Vals Tax Agent Bench and 57% on Terminal-Bench 4.1 against 18.2% for Gemini 3.8 Flash.

Google also shipped a new Orchestrator inside Google Antigravity. "Rather than using a single model from start to finish, Orchestrator dynamically switches between models like Carbon and Hydrogen within the same session," the post says. On Terminal-Bench 4.0, it reports Orchestrator "reached near-Carbon task success rates while, on average, consuming 24% less quota and completing 19% faster."

Availability spans Google AI Studio, the Gemini API, Android Studio, the Gemini App, Google Search, Google Sheets, and Antigravity for paid AI Pro, Ultra, and Gemini for Business subscribers. The post is bylined to Koray Kavukcuoglu, SVP of Google DeepMind and Chief AI Architect, and is the latest in a run of Google alerts we have tracked this week, following yesterday's Agent Gateway preview for EKS, AKS, and OpenShift. The launch post does not publish standalone latency figures beyond a 2.5x-faster-than-3.8-Flash claim at the high setting.