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OpenAI Launches Decisions API in Public Beta With GPT-6 Luna Powering 10x Faster Decisions

Oct 07, 2026
OpenAI Developer Community
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Summary

OpenAI launches its Decisions API in public beta, an endpoint that picks the right model, tool, or action for an app in near real-time. GPT-6 Luna powers it, with the company claiming decisions run up to 10x faster than through the Responses API. Pricing is $0.10 per million input tokens, with no output or cache fees.

Key Points

  • OpenAI launches the Decisions API in public beta, letting apps choose the right model, tool, or action in near real-time.
  • Powered by GPT-6 Luna, the Decisions API makes decisions up to 10x faster than GPT-6 Luna through the Responses API and supports predicates, choices, and scores.
  • The API costs $0.10 per 1M input tokens with gpt-6-luna, charging only for input tokens with no cache-read, cache-write, or output-token fees.

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