Published onSeptember 24, 2026Jev and System One Models: The AI That Decides Instead of WritingAI-AgentsLLMJevLayaOne-system-modelJev is a model released by a company called TypeSafe, announced September 15, 2026. It's positioned as the first model in a new category TypeSafe calls System One models — named after Kahneman fast, intuitive system 1 thinking.