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AI Model

Clef

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Cloudflare's open-weight decision model that classifies text or images into typed answers with probabilities for AI agents

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About Clef

Clef is an open-weight decision model from Cloudflare, released on 1 October 2026 under the Apache 2.0 licence. Rather than writing free text, it picks from a defined set of answers and gives a probability for each, so agents can make routine calls such as routing, moderation or approval without a person checking each one.

Main features

  • Typed classification: text or images are sorted into bounded answers, each with a probability.
  • Fine-tuning on customer data: Cloudflare offers reinforcement-learning fine-tuning on a customer's own data, first as a service run by its engineers, with a self-serve version to follow.
  • Open weights: the weights are published on Hugging Face under Apache 2.0.
  • Hosted option: the model also runs on Cloudflare's Workers AI.

Customers and markets

Teams building agents that take routine decisions inside software.

Key facts

  • Released: 1 October 2026
  • Context: 64,000 tokens, for text or images
  • Price on Workers AI: $0.24 per million input tokens (Cloudflare, 9 October 2026)
  • Backbone: a frozen Qwen 3.8 27B model
  • Related model: Clef-flash, a smaller variant released the same day

Profile written by TrustList from the business's own published information, Oct 2026.

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Categories & features

Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.

Verification
0/100 · 20%
Reviews
0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 10/2/2026

What the business tells TrustList

Founded
2026 (0 years) evidence sent

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