Microsoft launches Decision-1, an AI model built to make fast calls

Microsoft has unveiled Microsoft-Decision-1, an AI model with a narrow job: making structured decisions quickly. It doesn’t write poems or draft emails. It picks the right answer from a fixed list. Microsoft says the model tops rivals on accuracy and runs far faster than them. The company is already testing it inside its own operations. What Decision-1 actually does The model was announced on October 9, 2026. Microsoft describes it as a decision-scoring model built for tasks like routing, classification, prioritization, verification, and workflow control. Technically, the model assigns calibrated probability scores to a set of fixed answer options. Those can be simple yes/no questions or multiple-choice setups. Calibration matters because it means the confidence number is supposed to be trustworthy, not just decorative. Plainly put, the model doesn’t just say “route this ticket to security.” It also says how sure it is. That lets a business decide when to trust the machine and when to escalate to a human. Decision-1 can handle inputs of up to 32,000 tokens in a single pass. A single-pass design means the model takes in the whole input and returns its scores in one shot, rather than...