TypeSafe AI's Jev returns confidence-scored decisions, not text: a16z sits down with Diogo Almeida

a16z · x · 2026-09-28

Ben Horowitz and Martin Casado of a16z interview TypeSafe AI founder Diogo Almeida about Jev, a model built to live inside software. Almeida's diagnosis: AI is unbelievably smart, but outside chatbots and coding agents it barely touches real work, because the industry built models that generate text for humans to read — output software can't consume. Jev instead reads natural language and returns a choice from a set of options with a confidence level on each, letting developers build programs that reason about intent and make probabilistic decisions without human interpretation. The conversation covers Jev vs. Claude Code and Codex, why Jev is fundamentally a classifier, and whether it's a chat-to-code slider. TypeSafe's philosophy: "We build prod, not God."

Related event: a16z Talks to TypeSafe's Founder on AI That Returns Decisions, Not Text(2 posts)→

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