Using Microsoft-Decision-1 on OpenRouter
Implementation guide · Microsoft-Decision · Microsoft Research
OpenRouter exposes Microsoft-Decision-1 through model ID microsoft/microsoft-decision-1. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-10-09. Next refresh: weekly.
Quick Start
- 1
- 2Use the OpenRouter SDK or REST API to call
microsoft/microsoft-decision-1— see the documentation for request format. - 3
Code Examples
Pricing on OpenRouter
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.04 |
| Output tokens | Free |
Capabilities
About Microsoft-Decision-1
Microsoft-Decision-1 is Microsoft's decision-scoring model, announced 2026-10-09 by Satya Nadella and generally available in Microsoft Foundry and through OpenRouter. It does not generate text: given a state (text or JSON) and typed questions, it returns a probability for a yes/no condition (noul), a selected option with a probability for every option (choice), or a position on an ordered scale (score), and it writes no rationale. Microsoft post-trained Qwen3.5-9B for single-pass decision scoring. Inputs are text-only, up to 32,768 tokens. In Foundry it deploys as Microsoft-Decision-1 (version 1, GlobalStandard, or DataZoneStandard in selected regions) and is called at /providers/microsoft/v1/systemone.