Microsoft launches Microsoft-Decision-1 decision model

Microsoft introduced Microsoft-Decision-1, a decision-scoring model for routing, classification, prioritization and verification, available in Microsoft Foundry and soon on OpenRouter. Microsoft says it topped a 36-benchmark comparison and was fastest, 4.5x quicker than runner-up Quyet-1.0-Large and 35x than GPT-6 Sol; it was post-trained from Qwen3.5-9B.

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