Jev launches: a System One model for decisions
TypeSafe founder Diogo Almeida introduces Jev, its RLCD training method, and its focus on software decisions. The post includes a 2:56 launch video.

TypeLLM is a new open-source model that reasons before producing type-safe output, dramatically boosting accuracy without fine-tuning. The team claims it surpasses Jev and GPT-5.6 Luna and approaches GPT-6 Astra.
Jev @typesafeai, but with thinking? TypeLLM can think before producing a type-safe output. It dramatically boosts accuracy without any fine-tuning—surpassing Jev and GPT-5.6 Luna, and coming close to GPT-6 Astra! Open-source: https://github.com/TypeLLM/TypeLLM