Gemini 4 Hydrogen and Orchestrator
Summary
Google Antigravity launches Gemini 4 Hydrogen with a new Orchestrator that pairs Hydrogen and Carbon models for dynamic, multi-model task execution. Orchestrator improves speed and quota efficiency, enabling Hydrogen to handle coding/triage while Carbon handles planning and security checks; includes SDK for explicit multi-model pipelines. The rollout targets Google AI Pro/Ultra and Google Gemini for business.