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Snake Arena
Two self-contained HTML pages that let System One models and LLMs play Snake: a single-player board and a 1 vs 1 duel, with seeded food, per-move latency, cost tracking and downloadable JSON results.
- Stars
- 1
- Reading time
- 2 min
- Published by
- Community
- Added
- Oct 2026
Highlights
- Two dependency-free HTML pages: single-player snake-arena.html and 1 vs 1 snake-arena-duel.html
- Supports OpenAI chat completions, OpenRouter Decisions and System One /v1/decisions endpoints
- Same seed produces the same food sequence, so runs are reproducible and comparable
- Tracks score, ticks, invalid moves, accuracy, mean/P50/P90 latency and cost per player
- Requests time out after 60 seconds; more than 5 invalid moves in a row loses the game
Questions about this entry
Short answers drawn from the linked project or page.
Clone the repo or download the HTML file you want and open it in a browser. If your API provider rejects requests from file://, serve the folder locally with python3 -m http.server 8000.
Click API key, fill in the endpoint, model ID and key, then save. Each player stores its own connection in browser localStorage, and the key is sent as an Authorization Bearer header.
Requests go straight from your browser to the API provider you configure, so the provider must allow CORS. Keys are stored only in your browser's localStorage and are masked in the console log.
In order: more points, then still alive at the tick limit, then more ticks survived, then the faster model by lower P50 latency.
OpenAI chat completions, OpenRouter Decisions at /api/alpha/decisions, and System One at /v1/decisions where the model field is optional. Mismatched URLs are corrected automatically.
Requests time out after 60 seconds, reversing 180 degrees or sending a non-direction counts as an invalid move, and more than five invalid moves in a row loses the game.
It is a browser benchmark for comparing models at Snake, not a production harness, and sandboxed previews that block external APIs will not work.
Reactions & coverage
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