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Cloudflare, Inc.· Released Oct 1

Cloudflare Clef

Clef (27B) and Clef-flash (9B) are Cloudflare-trained open-weight (Apache 2.0) multimodal decision models: given a state and typed questions they return bounded structured answers with probabilities in one forward pass, Jev/System One API compatible, hosted on Workers AI with a 64k context. Launched alongside a new RL fine-tuning platform.

clef-evals: calibration-first eval toolkit for ClefOct 1

Entries

CoderOne

youtube.com · Oct 5

YouTube video (13:08) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

Aleksandar Haber PhD

youtube.com · Oct 5

YouTube video (11:13) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

The Solo Engineer

youtube.com · Oct 5

YouTube video (5:04) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

Data Science in your pocket

youtube.com · Oct 5

YouTube video (5:21) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

lucataco

@lucataco · Oct 1

Runs Cloudflare's clef-flash decision model on your webcam stream locally, answering typed questions about each frame. The most-starred community build of the week.

Tech Brew Ride Home Podcast

youtube.com · Oct 3

YouTube video (3:16) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

SILICONCASH

youtube.com · Oct 3

YouTube video (1:57) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

Model Fatigue

youtube.com · Oct 4

YouTube video (13:56) on Cloudflare's Clef decision models, covering what they do and how they compare with Jev. Date is approximate.

ygwyg

@ygwyg · Oct 1

When a URL 404s, Clef reads the request and picks the most likely real destination, turning dead links into redirects. A neat small use of a decision model in the request path.

Matthew-Eucaristo

@Matthew-Eucaristo · Oct 2

Drive your whole Mac by voice: it reads the screen via Accessibility, acts by clicking and typing, verifies each step, and can use a local Clef-flash judge.

Cloudflare Clef: quick answers

What can you build with Cloudflare Clef?
People have published 126 public builds made with Cloudflare Clef. The most common uses are dev tools (31), education (24), research (18), agents (15) and coding (11).
What are the best Cloudflare Clef GitHub repos?
The most-starred open-source Cloudflare Clef projects in the index are Clef-flash running locally on a live webcam feed, ry: an AI router for 404 pages powered by Clef and s1: a voice-first macOS agent.
Are there Cloudflare Clef demo videos?
Yes: 22 videos show Cloudflare Clef in use, each linked to the original post.
Where do people share Cloudflare Clef projects?
Mostly on GitHub, YouTube and Hacker News, from 118 creators between Oct 1 and Oct 8.