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
jev plays snake
A browser Snake game where code computes the legal moves, food distance, and reachable space and Jev picks one move per tick with a single Choice question; a late answer leaves the snake going straight.
- Category
- Cookbooks & Demos
- Published by
- Community
- Author
- sorrycc
- Added
- 2026-09-22
Tagscommunitytypescriptgamesdemo
Highlights
- A fixed-clock controller asks Jev at tick start and plays whatever answer arrived by tick end; a miss just keeps the snake moving straight.
- The code generates exact per-move facts: food distance, reachable cells via flood fill, and dead ends, then asks one Choice question.
- The TypeSafe API key lives only in a Hono proxy server; the browser calls /api/decide.
- The engine is pure and seeded, with controller tests and a typecheck script runnable via pnpm test and pnpm typecheck.
Quickstart
bash
cp .env.example .env
pnpm install
pnpm devWatch out
No license file, so reuse terms are unclear. Needs a TypeSafe API key plus pnpm and Node; the game asks Jev once per tick and has no offline mode.
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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
cua open sourced a 706k param model that fills a whole form in one 50ms pass the llm agent doing the same form took 23 turns and 39.6 seconds the specialists are going to eat the generalists from the bottom
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
Navigating Neo4j with Jev
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前 OpenAI 研究员 Diogo Almeida 创办的 TypeSafe AI 推出新模型 Jev。它有点像一个能读懂自然语言的超级分类器，不生成文本，只返回选项、分数和概率，专门给软件做判断。 普通大模型需要一个 token 一个 token 往外生成，Jev 则可以并行给出多个结果。TypeSafe 还用新的 RLCD
Reranking 33,047 catalog entries
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有美团、阿里的老哥嘛？ 试试加一路召回、重排（离线、近实时实现），我觉得有奇效 他在文本理解上 跟之前机器学习、llm很不一样 还能自动打标签做特征
Six uses that stuck after 60 days
I've been using Jev by @typesafeai Here's the six things i've tried and am confident I'll still use Jev for 60 days from now. There's many more experiments, ideas, and things I think I will use it for. It's a big deal (more on why in next post). But I am only sharing things Show more
Security decisions that fit Jev
This made me rethink where AI actually fits into security engineering. For purely engineering work, forget about ChatGPT or Claude. TypeSafe AI just released Jev, and I think it’s going to change how we build AI into security workflows. Instead of asking an LLM to “investigate Show more
we are officially out of stealth! join the frontier and get access to Jev on our website (link on profile)