Models · Updated 10 Oct, 08:27 pm IST
Microsoft launches Decision-1 decision model based on Qwen3.5-9B

Why it matters for readers: If you're following how AI is being specialized, Decision-1 shows big companies are making models specifically for structured decision-making.
- Decision-1 is a decision model from Microsoft built on Qwen3.5-9B and designed for classifications, evaluations and routing decisions.1
- Microsoft's benchmark claims Decision-1 achieved 83.5% accuracy across 36 benchmarks and 85 ms latency, ranking it ahead of competitors in the test set.1
- Microsoft says Decision-1 is 2.5x faster than the runner-up, H2O-Lightning-4B, in its speed comparisons.1
- Decision-1 is available through Microsoft Foundry and OpenRouter, with input tokens priced at $0.042 per million and output tokens free.1
- The announcement follows a recent surge in decision-model interest started by the startup Jev, and Microsoft’s comparison did not include Cloudflare’s Clef models.1
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