Microsoft Decision-1 and Liquid d1 make typed decisions gateway-ready

Decision models are moving classification, routing, and scoring away from generated text toward typed answers with probabilities. Microsoft’s Decision-1 and Liquid AI’s d1 are both available through Vercel AI Gateway, giving applications structured decision APIs alongside usage and spend tracking. Microsoft’s model was built independently of OpenAI’s decision model, using Alibaba’s Qwen.

• Microsoft Decision-1 answers yes/no, categorical, and ordered scoring questions with probabilities, and multiple questions can share one input; it is available through Vercel AI Gateway without a separate Azure account or deployment.
• Liquid AI’s d1 returns structured answers without generating text tokens and adds vision support for image classification, inspection, and scoring.
• Both models can be called through Vercel’s AI SDK decision API, OpenAI-compatible Decisions API, or TypeSafe-compatible API, using one AI Gateway key.
• Microsoft built its own decision model on Alibaba’s Qwen rather than using OpenAI’s decision model, according to a report dated October 10, 2026.

Bottom line If you classify, route, score, or evaluate responses in production, test a decision model beside your generative path and define review thresholds for low-probability results.