Orchestrator is a new option in Antigravity's model selector. It pairs Gemini 4 Carbon with Gemini 4 Hydrogen, a model Google introduced the same day.
In the News: November 12, 2026 (Extra 2)
Google's Antigravity adds Orchestrator, which passes one coding session between Gemini 4 Carbon and the cheaper Gemini 4 Hydrogen released today.
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Antigravity's Orchestrator switches between a planning model and a cheaper executing model inside one session
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AgentRun is an open-source control plane that sits on top of an existing harness: Claude Code, Codex, OpenCode or pi. It adds durable runs, approvals, spend caps and a learning loop.