Antigravity Orchestrator Mode

Google Antigravity now has an Orchestrator mode that pairs a larger Gemini 4 model with Gemini 4 Hydrogen in one session, for Antigravity users.

Orchestrator shows up in the model dropdown as Orchestrator (Carbon) and Orchestrator (Argon)
Antigravity automatically pairs Gemini 4 Carbon or Argon with Gemini 4 Hydrogen inside the same session
Carbon or Argon explores dependencies and builds the plan, Hydrogen writes the code, updates packages, and runs tests, and the larger model steps back in to adjust the plan if a test fails
Google's reasoning is that running a heavy frontier model on every small code edit slows you down and burns quota
Rolled out alongside Gemini 4 Hydrogen in Antigravity

Coding sessions with many small edits where a heavy model on every step is wasteful

You want a strong model to plan the work and a faster one to carry it out

Developers working in Antigravity who watch their usage quota

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