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Cloudflare’s Birthday Week: Two European Open Models and AI Security Defenses Built for Choice

It's Birthday Week, when Cloudflare ships presents to the Internet. This year, two come from Europe: EuroLLM, which covers all 24 official EU languages, and Apertus, Switzerland's fully open model trained on more than 1,500 languages. Both were built by public universities and research institutions and are coming to Workers AI, available for request today. Cloudflare is also launching hands-on workshops that help government cyber agencies and critical infrastructure operators build AI defenses that work with any model. The first runs in Singapore in October. These announcements follow an...

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Cloudflare blog header with text introducing Clef decision models and a colorful crystal ball icon.

Cloudflare Releases Decision Models Clef and Clef-Flash for Agentic AI

Over recent weeks, decision models such as Typesafe AI's Jev System One have gained attention as a new AI paradigm. Unlike traditional classifiers, decision models produce bounded structured outputs quickly and consistently, enabling deterministic decisions in workflows without constant retraining. This contrasts with Large Language Models, which are non-deterministic but capable of open-ended reasoning and agentic workloads. Cloudflare today announced two decision models, Clef and Clef-flash, hosted on Workers AI. Clef currently leads when evaluated against the Jev Decision Index, with...

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