TypeSafe Jev: ChatGPT co-creator ships non-LLM decision model
TypeSafe AI, founded by OpenAI RLHF researcher Diogo Almeida, launched Jev—a System One model that returns typed, calibrated probabilities instead of text for cheap automation. Early users report 5–18× faster classifiers versus LLMs, free output tokens, and use cases like routing, guardrails, and agent-trace checks.