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Microsoft joins decision-focused AI model race with Microsoft-Decision-1

Microsoft has unveiled Microsoft-Decision-1, an AI model designed for fast decision-making that outputs structured results software can use directly. The model handles yes-or-no, multiple-choice and scoring requests and provides probability scores for each option. Microsoft trained it on the open-source Qwen3.5-9B model and plans versions based on its MAI model and OpenAI models. It cited internal use cases showing faster performance and lower costs versus GPT models.