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MODEL SIGNAL · CLOUDFLARE · NEW

Clef

Cloudflare has released Clef and Clef-flash, open-source multimodal decision models hosted on Workers AI. They read text, JSON, images, or video together with typed questions and return structured probabilities for the allowed answers.

CATEGORYMultimodal
CONTEXT64K tokens
RELEASEDOctober 1, 2026
Key Features
  • 27B multimodal decision model
  • 9B Clef-flash variant for latency-critical decisions
  • Accepts text, JSON, images, and video
  • Returns typed decisions and probabilities rather than free-form text
  • Hosted on Workers AI and open-sourced under Apache 2.0
  • 64K-token context window

Provider announcement →

Read the Model Signal report →

The designed Model Signal report for Clef is still in review. It will publish here after the fact and quality gates clear.