Cloudflare Releases Decision Models Clef and Clef-flash, Returning Probabilities Instead of Text

Techhub News reports, Cloudflare has released its first models, Clef and Clef-flash, trained by its Workers AI team. They are decision models, not chatbots, capable of reading input states and a set of typed questions, and returning probabilities for each allowed answer without generating free text. Both models are available under the Apache 2.0 open-source license, compatible with TypeSafe AI's Jev API, and can now be deployed on the Workers AI platform, with weights uploaded to Hugging Face.

According to Cloudflare's evaluation in decision model benchmarks, the Clef model scored the highest in 7 out of 10 benchmarks. For example, on the BANKING77 task, Clef's macro F1 score was 94.20, higher than Jev's 79.74. In a threat intelligence workflow, Clef took 2.2 seconds to classify a domain name, faster than gpt-oss-120b's 4.7 seconds. All data are self-reported by the vendor and have not been independently reproduced. (MarkTechPost)