Google Antigravity said on November 12, 2026, that Orchestrator, a model-dropdown option rolling out for Google AI Ultra subscribers, reached near-Carbon task success on Terminal-Bench 4.1 while averaging 24% lower quota use and 19% faster completion by dynamically switching between Gemini 4 Carbon and Gemini 4 Hydrogen within one session. The new Hydrogen model is rolling out separately in Antigravity to paid Google AI Pro and Ultra subscribers, while enterprises can access both models through…