# Fab Gym

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Apoorva Sinha](https://cerebralvalley.ai/u/apoorvasinha183)
- **GitHub:** https://github.com/apoorvasinha183/fab-gym
- **Demo video:** https://youtu.be/Wh0Hpxb5VMw
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3562

▶ Play it live, no install: https://apoorvasinha183.github.io/fab-gym-site/

Fab Gym is a digital twin of a 1,043-machine wafer fab (the published SMT2020 testbed), presented by its cartoon robot CEO, Lou Latency. A fab cannot try a new rule on its real floor without risking weeks of output, so Fab Gym tests it first. Meta's models turn a plain-English what-if into an experiment, write dispatch rules as code, supervise the fab, play against you and guide you through it. A Rust simulator we wrote in this hackathon (about 0.03 s per simulated day, also in the browser through WebAssembly) scores every answer against today's rule on paired random days with 95% intervals, a Lean 4 referee checks every scored run, and a person signs. Play it in the browser with your own key, run it locally, load it as a Gymnasium RL environment, or walk the 3D fab in Godot with Lou, cinema included. We also report where the AI lost: on the full fab, no rule beat the fab's own.

## More from Meta Global AI Developer Hackathon

- [itlogs.food](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3559)
- [Altair](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3560)
- [Simulicity IA](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3561)
- [RGB Reliable General Business LLC](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3563)
- [Boredom](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3564)
- [whynot](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3565)

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