Get Out of the Model's Way — Kevin Hou, Google Antigravity

93 subagents, 12 hours, 2 billion tokens and under $1,000: that's what it took Google's Antigravity to build an operating system kernel from scratch that runs Doom.

Kevin Hou, who leads engineering on Antigravity, Google DeepMind's agentic coding product, explains the principle behind it: "Give Messi the ball and get out of the way." Your product should get better every time the model does. Hou traces how coding tools evolved, from autocomplete in 2022 to agents in 2024, agent managers in 2025 and agent teams in 2026. He also shares the lessons from hard calls like removing chat from Windsurf. He then introduces Antigravity 2.0 and the three building blocks of the agent-teams era. The first is dynamic subagents, where Gemini 3.5 Flash leads a team through /teamwork. The second is sidecars, a new plugin protocol that lets agents listen for webhooks, cron jobs and messages. The third is generative UI rendered on the fly. He also shows how DeepMind researchers automated 90% of eval analysis with 100 parallel hypothesis agents.

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