1/ Introducing CUA-S1: a family of System One Models, small, specialized, and built for computer use. Today we're open-sourcing CUA-S1-FORMS, the first in the family: github.com/trycua/cua
Snake Jev
A desktop Snake experiment where Jev assesses the board each tick and Python combines its answers into a move; one recorded run reached 29 foods in 461 ticks before trapping itself.
- Category
- Cookbooks & Demos
- Published by
- Community
- Author
- siroccomask
- Added
- 2026-09-22
Tagscommunitypythongamesdemo
Highlights
- Each tick makes one real API request with nine questions: wall collision, body collision, and food progress for turn left, straight, and turn right.
- Code composes only Jev's answers: it prefers food progress among collision-free actions, then lowest assessed collision risk, then straight.
- Inputs per direction are moves_before_wall, body_distance_moves, and food_offset_moves; behind is observed but not an available action.
- Redacted traces in .jev_traces/ hold the request, the API answers, the code composition, and before/after board snapshots.
- The agent detects immediate hazards but does not plan a route through the full body layout, so an incorrect assessment can still kill the snake.
Quickstart
bash
git clone https://github.com/siroccomask/snake-jev.git
cd snake-jev
uv sync
cp .env.example .env
uv run python sketch.pyWatch out
MIT-licensed. Needs uv, a desktop with OpenGL support, and your own Jev API key (JEV_API_KEY); tested on macOS with Python 3.12, other platforms are unverified, and each tick may incur API charges.
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From the community
Posts from builders shipping with Jev right now.
Cua's small System One models
A 706K-parameter form filler
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1/ Introducing CUA-S1: a family of System One Models, small, specialized, and built for computer use. Today we're open-sourcing CUA-S1-FORMS, the first in the family: github.com/trycua/cua
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Six uses that stuck after 60 days
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we are officially out of stealth! join the frontier and get access to Jev on our website (link on profile)