What are Clef's decision models?

Open-source models for high-speed classification and agentic workflows, released by Cloudflare and hosted on its Workers AI platform.

Can I train them on my data?

A reinforcement learning platform ships with them for fine-tuning on your own data, rather than using the released weights as-is.

They are hosted on Workers AI, so the natural fit is a workload already running on Cloudflare's platform.

What does it cost to use?

No pricing page is published for Clef; the models are open source, so costs would come from the hosting you run them on.

Yes — Clef is listed as Agent Ready on Maarket.

Who is Clef best for?

Clef is listed as a fit for Startup teams.

What are the alternatives to Clef?

Other Developer Tools products on Maarket include 99tests, API Route, Autonomous Product Delivery (AutonomyAI), Bitrise Build Hub, Blume 2.0, Buddy Drop.

How is Clef ranked on Maarket?

Purely by Karma Points earned from community actions — reviews, recommends, use signals and clicks. There is no pay-to-rank; sponsor placements are always clearly labeled.

‹ Developer Tools

Clef — Open-source decision models from Cloudflare

#18 in Developer Tools

⚡ 15 KP · ↗ 0 total clicks

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Clef at a glance

Category: Developer Tools
Best for: Startup
Agent compatibility: Agent Ready
Total clicks: 0
Website: blog.cloudflare.com/clef-decision-models ↗
X (Twitter): @cloudflare ↗
Recommends: 👍 0
I use this: ✋ 0
Reviews: ⭐ 0
Last updated: 5 Oct 2026

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About Clef

A set of open-source decision models hosted on Workers AI for high-speed classification and agentic workflows, shipping with a reinforcement learning platform for fine-tuning on your own data.