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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.

About

OpenRouter is an AI model routing platform that gives developers access to hundreds of models through a single unified API. It connects users with models from providers such as OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, Qwen, xAI, and many others. The platform supports text, image, video, and audio generation while allowing developers to use one API key and a consistent interface across providers. OpenRouter can route requests based on price, performance, and availability, with fallback options that help maintain service when a provider experiences downtime. It also offers configurable data policies so organizations can control which providers receive prompts and how requests are handled. Developers can purchase credits, choose from more than 500 active models across over 80 providers, and integrate OpenRouter using an OpenAI-compatible API.

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

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

Audience

AI developers, software teams, startups, enterprises, and agent builders that want unified access to many AI models while optimizing cost, performance, reliability, and provider flexibility

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

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

Pricing

Free
Pay-as-you-go (5.5%) and Enterprise plans available
Free Version Supported
Free Trial 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 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5
support 4.0 / 5

Pros & Cons from Real Users

Pros

  • Instead of getting married to ChatGPT or Claude and being locked into that relationship, OpenRouter is way more polyamorous. LMAO. And it's less messy than the real life relationship version. I can use different LLMs for different types of tasks and you learn quickly which LLMs excel in certain areas. In the beginning I did multichats where I'd ask 1 question to 2 or 3 bots at a time (their multichat features) and whoever gave the best answer was who I continued interacting with. I guess it's more like speed dating than polyamory. But the bottom line is, instead of spending $20-$30/mo with one system, I am spending a la carte, which is WAAAAYYYY cheaper, and using the right tool at any given moment. It just takes discipline to copy and paste your chats elsewhere. It does give you a copy markdown button to make it easier. And if you enable markdown in Google docs, there is a paste as markdown feature that makes it look like RTF when it's pasted in, with no codes. Because the chats are browser bound, they are stuck on one computer and everybody is on a bunch of different devices these days. So pasting into Google Docs is the best bet for portability all around. Privacy isn't an issue, because they aren't storing your chats! For some people, this is a big plus. To use the service, they charge you a 9 or 10% charge for however much money you put towards tokens. So if I refill for $10, the total is $10.90, with $10 of usable token for whichever LLM I feel like using. Keep in mind, there are free LLMs too which you can choose and never pay. When you add models, type 'free' in the search box and you'll see several free, from Maverick to Scout to Gemma, etc. It will make you feel like a serious power user and you'll feel smarter everytime you use it. It also has access to the secret parameters that the online LLMs don't show you, like Temperature, Top P, Frequency penalty, etc. It can save you money if you tell it ahead of time what type of vocab you like or how divergent you want the suggestions to be, vs. training ChatGPT or Gemini manually.

Cons

  • The chats aren't persistent - you must copy and save them elsewhere before you close a browser window, or all that info from that chat is gone.

Training

Documentation Supported
Webinars Not 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

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

Company Information

OpenRouter
Founded: 2023
United States
openrouter.ai/

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Categories

AI Decision Models Supported

Categories

AI Gateways Supported
AI Inference Supported
AI Tools Supported
LLM API Supported
LLM Routers Supported

Integrations

AiAssistWorks Not Supported
Axis LMS Not Supported
GLM-4.7 Not Supported
GPT-4o Not Supported
GPT-5.1 Not Supported
GPT-5.3 Instant Not Supported
Gemini 2.0 Not Supported
Gemini 3 Pro Image Not Supported
Grok 4.1 Thinking Not Supported
Ling 2.6 Not Supported
Llama 3.1 Not Supported
Llama 4 Behemoth Not Supported
Llama 4 Maverick Not Supported
MachinesFluent Not Supported
Nano Banana 2.1 Not Supported
OpenAI Not Supported
OpenClaw Not Supported
Seed2.0 Pro Not Supported
Spawn Not Supported
ZGI Not Supported

Integrations

AiAssistWorks Supported
Axis LMS Supported
GLM-4.7 Supported
GPT-4o Supported
GPT-5.1 Supported
GPT-5.3 Instant Supported
Gemini 2.0 Supported
Gemini 3 Pro Image Supported
Grok 4.1 Thinking Supported
Ling 2.6 Supported
Llama 3.1 Supported
Llama 4 Behemoth Supported
Llama 4 Maverick Supported
MachinesFluent Supported
Nano Banana 2.1 Supported
OpenAI Supported
OpenClaw Supported
Seed2.0 Pro Supported
Spawn Supported
ZGI Supported
Claim Microsoft-Decision-1 and update features and information
Claim Microsoft-Decision-1 and update features and information
Claim OpenRouter and update features and information
Claim OpenRouter and update features and information