Official & Getting Started
Primary sources from TypeSafe: the launch announcement, documentation, quickstart, and console.
Start here when a Jev detail affects code or architecture. These links lead to TypeSafe's own launch material, documentation, quickstart, and console, so they are the best place to confirm the current request contract, model names, access status, and terminology. Read the System One overview before treating Jev like a chat model: the application supplies state and typed questions, while ordinary code owns thresholds and side effects. Because Jev is new, provider behavior can change faster than third-party tutorials. Recheck the official source immediately before implementing a production workflow.
TypeSafe AI
The company building Jev and the System One model family.
Official
TypeSafe
Jev
TypeSafe Documentation
Official concepts, API guides, primitives, and reference material for Jev.
Official
Documentation
API
Jev Quickstart
The official path from API key to a first System One request.
Official
Quickstart
Code
TypeSafe Console
Sign in, request access, and work with Jev through TypeSafe's console.
Official
Console
Access
Introducing System One Models & Jev
TypeSafe's September 2026 launch post with the model's design, claims, benchmarks, and caveats.
Official
Launch
Evidence
TypeSafe Manifesto
The company's case for AI interfaces designed for software rather than conversation.
Official
Vision
System One