Non-autoregressive System 1 decision engine. Typed choice, score and yes/no decisions over any text in a single forward pass, in 100+ languages, with a router that picks the right checkpoint per request.
Global
Qwen3-8B on a real BANKING77 item. Every number is a model output.
Open-source AI Trading OS, agent trading, and vibe trading, with Jev System One integration. Research, build Python strategies, backtest, and paper/live trade across crypto, stocks, and forex.
Jev-like family of decision models built on top of Qwen3.5/3.8 you can train and run on your own
Gaussian blur reveals how Valen-Preview-0923 adapts its decisions and confidence as visual detail decreases. 2% at the strongest blur.
js 22+, macOS or Linux, and a key for Vercel AI Gateway, TypeSafe, OpenRouter, or OpenCode Zen. No separate Python, Bun, or ripgrep installation is required to use jg.
A curated list of public projects, integrations, and discussions built on Jev — TypeSafe AI's System One model for typed decisions.
jevos: an open-source alternative to Jev and Microsoft-Decision-1. Yes/no decisions, choices and scores with probabilities, on your laptop's CPU.
AI agents can generate code, but still struggle to understand what they build. Reticle brings Jev-style machine-native runtime perception to web & desktop applications.
Jev is TypeSafe AI's first System One model. It does not write prose. It takes a state plus questions whose answer space you define in advance, and returns typed values with probability distributions your code can branch on.
A verified, community-maintained catalog of 981 open-source projects built with Jev.
Beacon is an open-source memory layer for AI coding agents that learns from your work across Claude Code, Cursor, Codex, OpenCode, and 20+ other harnesses.
TypeLLM brings type-safe generation to existing autoregressive LLMs without changing their architecture or weights. Inspired by TypeSafe AI's Jev, it lets models retain their native thinking and free-form generation while producing schema-guaranteed outputs through JSON Schema.
🎮 Results & Demos | ⚡ Quickstart | 💻 Run locally | 🤗 Models | 📊 Benchmarks | 📚 Docs
Give it a ticket, specification, bug report, or any free-form software job.
The job · Primitives · Forward pass · Results · Latency · Run it · HTTP · Repository
The open-source System One decision model. Sub-15ms, non-autoregressive, local drop-in alternative to TypeSafe Jev.
Awesome Jev: source-backed open-source ecosystem radar, plain-language project discovery, and automatic GitHub sync
1207 public resources for Jev, TypeSafe AI's System One decision model, indexed by decision pattern. Source citations, dated link checks and scheduled call-site text checks; runtime and performance are not independently tested here. EN/中文, JSON schema and platform compatibility.
TypeSafe / Jev latency-focused demos built by Devin. md and screenshots.
44 reviewed picks. Source notes and licenses . The larger discovery catalog is separate.
In Anthropic's Claude plugin directory · On the MCP Registry · Open source, MIT
DSCODE is a terminal coding agent for macOS, built on DeepSeek Harness. A persistent shell reads and writes code and runs tests; the TUI, the CLI and your scripts all share one session runtime instead of each starting their own.
Build calibrated AI Functions from human feedback using Jev and GEPA.
router is a command-line tool that picks an AI coding agent, model, and reasoning effort for a task, then starts that agent for you in a Herdr pane.
Bud Decision studio is an easy to use cross platform desktop application & serving system for Jev like models locally.
Evals and guardrails for agents, using Jev-style decision models instead of an LLM judge.