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
tinystruct
A lightweight, pluggable Java framework for CLI, HTTP, and modular applications that carries Jev, TypeSafe, and MCP-server topics; added from Maven as org.tinystruct:tinystruct and requiring JDK 17 or higher.
- Category
- Repos & SDKs
- Published by
- Community
- Author
- tinystruct
- Added
- 2026-09-22
Highlights
- Its CLI dispatcher ships commands including download, exec, generate, install, maven-wrapper, open, say, sql-execute, sql-query, and update.
- HTTP mode reports 86,753 requests/s at about 17.44 ms average latency in a 30-second wrk run with 12 threads and 400 connections.
- Tagged with jev, jev-ai, typesafe, typesafe-ai, typesafe-jev, and mcp-server topics alongside its Java framework topics.
- The optional standalone CLI jar bundles all dependencies at about 50 MB, is not part of the release, and is built with ./mvnw package -Pstandalone.
- Applications extend AbstractApplication and mark CLI or HTTP entry points with @Action, which can use Mode.HTTP_GET or Mode.HTTP_POST.
Quickstart
./mvnw package -Pstandalone
java -jar target/tinystruct-1.7.34-jar-with-dependencies.jar --helpWatch out
Apache-2.0-licensed. Requires JDK 17 or higher and Maven; the standalone CLI jar is not part of the release and must be built with the standalone profile.
More like this
From the community
Posts from builders shipping with Jev right now.
Six uses that stuck after 60 days
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)
A million judged questions
Ask Jev anything. Give it a try at askjev.ai It won't answer. It will judge. Let's see if we can get to 1 million questions. @typesafeai 🤝 @convex work great together. @hmartenjoyer @CompleteSkeptic @justKDeng @mikeysee
Inferring Jev's internals from 1,000 calls
Jevの内部アーキテクチャを推測している技術記事(Jev’s Architecture Unmasked)からメモ。 ・本記事はJevのAPIを約1万回の呼び出して、内部構造を推測したもの ・従来の言語モデルを用いた分類やルーティングでは、トークンを1文字ずつ逐次生成するために膨大な無駄な計算コストが発生していた。 Show more
The open System One roundup
Jev 发布没几天,开源社区已经开始疯狂复刻了🔥 最值得推荐的五个模型: 1、Laya 421M:原生决策模型,支持 Mac 2、Decider-2B:最像 Jev,基于 Qwen3.5 3、NanoJev 0.6B:专门的 Decision Head 4、Reflex:Qwen3.5 + Direct Logits 5、System-One 4B:专门做概率校准 Show more
Jev 刚发布没几天,开源社区就出现了同款🔥 Decider-2B模型,是基于 Qwen3.5-2B 做了特殊调整 它和 Jev 模型是一样的 只做选择 评分和判断 不是文本类的 LLM 模型 但两者还是有几个明显区别: 1、模型 Jev:闭源 System One Model Decider:Qwen3.5-2B,约 1.9B 参数,Apache 2.0 开源 2、价格
The launch post
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x Show more

