← All models

Microsoft: Microsoft-Decision-1NEW
microsoft/microsoft-decision-1decisions
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
staterequiredquestionsrequiredtypenoul · choice · scoreHow 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()


