TypeSafe AI has introduced System One Models, a new class of models designed for fast and structured decision-making, with the first model, Jev, being released in early access. Jev is optimized for automation and can produce type-safe structured values, making it suitable for integration into software. The model is claimed to be two orders of magnitude faster and more efficient than existing large language models. The company provides various demos and evaluations to showcase Jev's capabilities.