Clef

Clef

Cloudflare
+
+

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About

Clef is a 27B multimodal decision model that turns a state and a schema of typed questions into structured decisions. It can read state information as text, JSON, images, or video and return a probability for every allowed option of every question. The model supports a 65,536-token context window and vision inputs, allowing developers to evaluate both structured application data and visual content in the same decision workflow. Clef supports three typed question formats: noul for estimating the probability that a proposition is true, choice for selecting among predefined options and returning per-option probabilities, and score for evaluating an input against ordered criteria and producing a probability-weighted score. Applications can submit between 1 and 64 questions in a single request, with answers returned under the same question IDs.

About

Microsoft-Decision-1 is a fast decision-scoring model built for structured outputs that software can immediately act on. It is designed for routing, classification, prioritization, verification, and workflow control across applications, agents, and automated systems. The model is post-trained from Qwen3.5-9B for single-pass decision scoring and, when given a fixed set of answer options, returns a calibrated probability for each one. It supports yes/no, multiple-choice, rating, and rubric-based grading of AI responses and agent actions through a structured API. Microsoft evaluated the model across 36 benchmarks covering routing, ranking, long context, multilingual and out-of-distribution tasks, reasoning, and safety, and reports that it achieved the highest accuracy in that comparison while also delivering very low latency. The model is also designed for robustness, with testing focused on keeping decisions stable when prompts are paraphrased.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and AI application teams seeking to classify, score, route, and evaluate text, structured data, images, or video through fast typed decisions

Audience

AI engineering teams and developers seeking to make fast, calibrated routing, classification, scoring, verification, and workflow decisions inside applications and agentic systems

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$0.042 per 1M tokens
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Cloudflare
Founded: 2009
United States
developers.cloudflare.com/workers-ai/models/clef/

Company Information

Microsoft
Founded: 1975
United States
commandline.microsoft.com/microsoft-decision-1-model-foundry/

Alternatives

Clef-flash

Clef-flash

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Jev

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Solar Decide

Solar Decide

Upstage
Solar Decide

Solar Decide

Upstage

Categories

AI Decision Models Supported

Categories

AI Decision Models Supported

Integrations

JSON Supported
Markdown Supported
Microsoft Foundry Not Supported
OpenRouter Not Supported
Python Supported
Qwen3.5 Not Supported
TypeScript Supported

Integrations

JSON Not Supported
Markdown Not Supported
Microsoft Foundry Supported
OpenRouter Supported
Python Not Supported
Qwen3.5 Supported
TypeScript Not Supported
Claim Clef and update features and information
Claim Clef and update features and information
Claim Microsoft-Decision-1 and update features and information
Claim Microsoft-Decision-1 and update features and information