Jev creator says system-one models should be wired into code

On November 12, 2026, at the AI Engineer Code Summit, Diogo Almeida, lead creator of Jev and co-founder and CEO of TypeSafe AI, urged developers to automate everything using system one models. According to Latent Space, these are non-generative models that return structured choices, scores, or probabilities, and are typically far faster and cheaper than reasoning LLMs, also known as system two models. Almeida characterized the intelligence such models provide as reliable, argued that code is the language of automation, and said models should be integrated with code to make that automation possible.

At the same event, Glean and other companies demonstrated how they are using Jev in practice. Reporting also notes that Jev, the product that started this system one trend, was released less than two months ago. At this point, the publicly available coverage stops at the views presented and the application demonstrations staged at the summit, with no further developments recorded in the available reports.