# KRONOS

- **Event:** [Gemini 4 Argon SF Hackathon](https://cerebralvalley.ai/e/gemini-4-argon-sf)
- **When:** Sun, Oct 25 at 9:00 AM – 10:00 PM (PDT)
- **Where:** San Francisco, CA
- **Team:** [aTG R](https://cerebralvalley.ai/u/atg)
- **GitHub:** https://github.com/r-agni/kronos
- **Demo video:** https://drive.google.com/drive/folders/18sQZkeREngKt-R9MsKo18mXGypT9FVeE?usp=sharing
- **Gallery:** https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/84

- KRONOS-1M keeps one unbroken session across terrain, 60 Hz motion, LiDAR, and operator rubrics inside a 1,000,000-token context.
- It splits continuous robot trajectories into timed sub-tasks and writes past-and-future action captions for each segment.
- It scores the whole episode, then labels every 0.5 second step as normal, suboptimal, or failure.
- It grades trajectories against natural-language rubrics, and raises its thinking level when a step fails.
- On a failure it checks physics in a sandbox and writes four counterfactual rollouts (one chosen, three rejected), including physics and robot-shape changes, as preference-training pairs.

## More from Gemini 4 Argon SF Hackathon

- [Argon Drive](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/81)
- [Cutaway](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/82)
- [turntable](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/83)
- [SimRoboHome](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/85)
- [heisty-agents](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/86)
- [Abhi](https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/87)

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Markdown version of https://cerebralvalley.ai/e/gemini-4-argon-sf/hackathon/gallery/84. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt