Cloudflare Clef

Cloudflare Clef

open-source decision models

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We are introducing Clef and Clef-flash, open-source decision models hosted on Workers AI for high-speed classification and agentic workflows. Also launching: a new reinforcement learning platform that allows developers to fine-tune decision models using their own data.

Cloudflare Clef

Launch date
Clef
ClefOpen-source decision models from Cloudflare

Launched on October 2nd, 2026