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OpenAI and Microsoft launch Decisions API and Microsoft-Decision-1 for fast agent control flows

Abhishek Gawade
Abhishek GawadeinSoBasically
1 min readEdition: 2026-10-24-ai-technology
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What happened.OpenAI launched the Decisions API powered by gpt-6-luna for bounded choices, while Microsoft introduced the Microsoft-Decision-1 model within Microsoft Foundry.

Why it matters.Complex agent loops stall when systems produce verbose sentences for simple routing steps. Bounded decision endpoints deliver immediate probabilistic choices. This structured approach cuts token waste and keeps autonomous workflows fast.

The technical specifications:

  • Sub-second evaluation: The API bypasses token generation to evaluate boolean conditions, multiple-choice routing, and rubric scores up to ten times faster than text endpoints.
  • High-throughput capacity: Developers can batch up to 400 questions per request with prompt caching discounts and native JSON payload ingestion.
  • Enterprise availability: Pricing starts at ten cents per million input tokens, with identical structured models deployed across Azure OpenAI and Microsoft Foundry environments.

STORYLINE PROGRESSION & CONTEXT

This report represents a verified evolution of prior newsroom intelligence:

TOPICS:
#developer-tool#model#infrastructure