Google Launches Gemini 4 Hydrogen Coding Agent That Switches Models Mid-Task

Google launched Gemini 4 Hydrogen alongside a new orchestration system that lets its coding agent change which AI model it uses during a task. The New Stack reports the approach makes agents finish tasks 19% faster.

Why it matters: Developers building or evaluating AI coding agents should note that per-task model routing is emerging as a way to trade off speed, cost, and capability inside a single workflow.