GoKawiilGoogle introduces Orchestrator to mix frontier and lightweight models in Antigravity
Google has launched Orchestrator within Google Antigravity, a system that automatically switches between models — codenamed Carbon, Argon and Hydrogen — during a single coding session rather than relying on one model throughout. Hydrogen is positioned as a fast execution model for routine coding tasks, working alongside Carbon and Argon, which handle deeper architectural reasoning. On Terminal-Bench 4.0, Google reports Orchestrator achieved task success rates close to Carbon alone while using 24% less quota and finishing 19% faster.