TypeSafe AI launches Jev, a transformer for preset decisions, not chat

TypeSafe AI released Jev on September 15, 2026, in San Francisco. Jev uses transformer architecture, the design behind AI, but is not a large language model. It outputs calibrated probabilities for preset options, rather than text. Because users fix those options in advance, TypeSafe says it cannot hallucinate. The company calls it a System One model, meaning fast, programmatic decisions.