Cloudflare says its new Clef model means humans no longer need to be in the loop for AI agents

Cloudflare is releasing Clef and Clef-flash, two decision models for AI agents. Speed is the company's main selling point against frontrunner Jev. A decision model returns a brief classification with probabilities rather than a long text response. Given a customer support message, Clef assesses its urgency and identifies the team that should handle it. Downstream code can use those results to route a ticket, trigger an escalation, or hand the case to a human.

According to Cloudflare, "a human does not necessarily need to be in the loop for agentic decisions anymore." Agents can "programmatically gather context, make decisions, and take actions on tasks, or defer to a human when needed." Cloudflare takes the name from music, where a clef assigns pitches to the lines of a staff. Similarly, a decision model sets the framework for the actions that follow.

The phonetic resemblance to "Jev" is probably no accident either. These "decision models" fill a niche between large language models and traditional classifiers. Language models can reason and call tools, but their outputs vary and they can be slow. Traditional…