# Microsoft releases Decision-1 scoring model built on Qwen3.5-9B

> Microsoft-Decision-1, a decision‑scoring AI that gives calibrated probabilities, is now available via Microsoft Foundry and OpenRouter.

Oossa · 2026-10-10 · https://oossa.com/en/microsoft-releases-decision-1-scoring-model-built-on-qwen3-5-9b

Microsoft has launched Microsoft-Decision-1, a decision‑scoring model designed for routing, classification, verification and agent control. The model returns a calibrated probability for each fixed answer instead of free‑form text. It was post‑trained from Alibaba’s Qwen3.5‑9B model. Microsoft-Decision-1 can be accessed today through Microsoft Foundry and OpenRouter.

## The facts

- Model size: 9 billion parameters (Qwen3.5‑9B)
- Available on Microsoft Foundry and OpenRouter as of Oct 2026

## Why it matters

Businesses can use the model to get reliable probability scores for specific choices, improving automated decision workflows.

## Sources & references

1. [Microsoft AI Releases Microsoft-Decision-1: A Qwen3.5-9B Decision-Scoring Model](https://www.marktechpost.com/2026/10/09/microsoft-ai-releases-microsoft-decision-1-a-qwen3-5-9b-decision-scoring-model/) – MarkTechPost, 2026-10-10
2. [Microsoft's Decision-1 model enters the fast-growing AI decision model race](https://the-decoder.com/microsofts-decision-1-model-enters-the-fast-growing-ai-decision-model-race/) – The Decoder, 2026-10-10

Last updated: 2026-10-10