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Cloudflare tries to outplay Jev with open-weight Clef models

What happened

Cloudflare has launched its own pair of open-weight "Clef" decision models, Clef and Clef-flash, which are available on its Workers AI platform and for download on Hugging Face.

Source

Article excerpt

Highlighted: the sentence this signal was extracted from

ai and ml Sure, it costs more, but it can handle images and video and it's available on Hugging Face if you have the hardware horsepower to run it locally Two weeks after the Jev model took the AI world by storm, Cloudflare has released its own pair of "Clef" decision models that it claims are smarter and faster than Jev, while also being open weight and runnable locally. The Clef family of decision models was announced by Cloudflare on Thursday, and consists of two models: Clef and Clef-flash, a slightly smaller and faster version of the model. For all intents and purposes, they work the same way as TypeSafe's Jev, in that they can answer three types of bounded, structured questions: Yes/no, multiple choice, and rankings. It's there that the bigger differences emerge, though, as Clef isn't only built differently but, if Cloudflare's benchmark claims hold up, also appears more capable than Jev and several other decision models in a number of tests. For starters, Clef has an LLM backbone. According to Cloudflare, Clef uses specially post-trained, frozen versions of Qwen3.8-27B and Qwen3.5-9B for Clef and Clef-flash, respectively, with the Qwen backbone performing a prefill-only pass during inference. Clef is still fast - faster than Jev, to be fair - and scores choices in parallel after that prefill-only pass. It's not clear what Jev's underlying architecture is, as TypeSafe...

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Extracted by Autobound

From the Signal API record
Event
Launch

What this signalsA launch often needs new go-to-market and support spend.

Product
Clef
Takes effect
Oct 1, 2026

The full record

From the Signal API record

Details

Release type
Model

Topics and mentions

Product tags

  • online technology
  • general technology
  • future tech
  • data

Extraction

Confidence
95%
Detected
Oct 1, 2026
signal_type
news
signal_subtype
launches

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The API returns more than this page shows

This page shows a preview. The full news record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/83fdbf9e-039d-681f-81b7-589ef6ca1fc4 returns this record as JSON. POST /v1/companies/enrich returns every signal for cloudflare.com.

{
  "signal_id": "83fdbf9e-039d-681f-81b7-589ef6ca1fc4",
  "signal_type": "news",
  "signal_subtype": "launches",
  "detected_at": "2026-10-01T20:39:49+00:00",
  "company": {
    "name": "Cloudflare",
    "domain": "cloudflare.com"
  },
  "data": {
    "url": "https://www.theregister.com/ai-and-ml/2026/10/01/cloudflare-tries-to-outplay-jev-with-open-weight-clef-models/5300649",
    "title": "Cloudflare tries to outplay Jev with open-weight Clef models",
    "excerpt": "ai and ml Sure, it costs more, but it can handle images and video and it's available on Hugging Face if you have the hardware horsepower to run it locally Two weeks after the Jev model took the AI world by storm, Cloudflare has released its own pair of \"Clef\" decision models that it claims are smarter and faster than Jev, while also being open weight and runnable locally. The Clef family of decision models was announced by Cloudflare on Thursday, and consists of two models: Clef and Clef-flash, a slightly smaller and faster version of the model. For all intents and purposes, they work the same way as TypeSafe’s Jev , in that they can answer three types of bounded, structured questions: Yes/no, multiple choice, and rankings. It’s there that the bigger differences emerge, though, as Clef isn’t only built differently but, if Cloudflare’s benchmark claims hold up, also appears more capable than Jev and several other decision models in a number of tests. For starters, Clef has an LLM backbone. According to Cloudflare, Clef uses specially post-trained, frozen versions of Qwen3.8-27B and Qwen3.5-9B for Clef and Clef-flash, respectively, with the Qwen backbone performing a prefill-only pass during inference. Clef is still fast - faster than Jev, to be fair - and scores choices in parallel after that prefill-only pass. It’s not clear what Jev’s underlying architecture is, as TypeSafe...",
    "product": "Clef",
    "summary": "Cloudflare has launched its own pair of open-weight \"Clef\" decision models, Clef and Clef-flash, which are available on its Workers AI platform and for download on Hugging Face.",
    "planning": false,
    "image_url": "https://image.theregister.com/5300666.jpg?imageId=5300666&x=0&y=0&cropw=100&croph=100&panox=0&panoy=0&panow=100&panoh=100&width=1200&height=683",
    "confidence": 0.95,
    "product_data": {
      "name": "Clef",
      "full_text": "pair of \"Clef\" decision models",
      "fuzzy_match": false,
      "release_type": "model"
    },
    "product_tags": [
      "online_technology",
      "general_technology",
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    ],
    "published_at": "2026-10-01T20:39:49Z",
    "effective_date": "2026-10-01",
    "article_sentence": "Two weeks after the Jev model took the AI world by storm, Cloudflare has released its own pair of \"Clef\" decision models that it claims are smarter and faster than Jev, while also being open weight and runnable locally."
  }
}

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