Microsoft announced Decision-1 on October 9, with a public preview in Microsoft Foundry. It scores fixed answer options for routing, classification and workflow decisions.
Microsoft says the model was post-trained from Qwen3.5-9B. It supports yes/no, multiple-choice and rating tasks. Proposed future versions using MAI or OpenAI models are plans, not completed releases.
The company’s benchmark claims are not independent validation. Applications still need their own testing before acting on scores. Sources: Microsoft Command Line and Microsoft Foundry blog, October 9.