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Microsoft: Microsoft-Decision-1NEW

microsoft/microsoft-decision-1
decisions
Microsoft-Decision-1 is a small model built for fast decision-making. Instead of generating text, it reads the provided content and returns a calibrated probability for each fixed answer option, so the response carries its own confidence and can determine when an application acts, defers, or asks for review. It is post-trained from Qwen3.5-9B for single-pass scoring and suited to classification, routing, prioritization, verification, workflow control, agent guardrails, and AI judging. It is not intended for open-ended generation, conversation, translation, or summarization. Weights are updated continually while the API shape stays the same. Learn more in Microsoft's announcement: https://commandline.microsoft.com/microsoft-decision-1-model-foundry/
Price request / response
Context
32.8K
Released
Oct 9, 2026

Parameters

staterequired
questionsrequired
typenoul · choice · score

How to use via API

import requests

r = requests.post(
    "https://api.mixen.ai/v1/decisions",
    headers={"Authorization": "Bearer mxn-..."},
    json={
        "model": "microsoft/microsoft-decision-1",
        "state": "Help! My payouts have been failing for 3 days.",
        "questions": {
            "is_urgent": {
                "type": "noul",
                "instructions": "Does this message convey urgency?",
                "criteria": {"true": "Explicitly time-sensitive",
                             "false": "No urgency expressed"},
            },
            "department": {
                "type": "choice",
                "instructions": "Which team should handle this?",
                "criteria": {"billing": "Payments, invoicing, refunds",
                             "technical": "Bugs, outages, integrations"},
            },
        },
    },
)
answers = r.json()["answers"]
if answers["is_urgent"]["noul"] > 0.8 and answers["department"]["choice"] == "billing":
    escalate_to_billing()
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