OpenAI Launches Luna-Powered Decisions API at DevDay
At DevDay, OpenAI launched the Decisions API, powered by its Luna model, targeting ultra-fast constrained decision making. It supports visual input with an end-to-end tuning goal of making decisions within hundreds of milliseconds, suited to fast decision tasks like computer use. Rasmic called the product OpenAI's "Jev competitor," and the live audience reacted enthusiastically—a signal of OpenAI entering the decision-API market.
Confirmed
- Official announcement (as relayed by thsottiaux): the Decisions API is built on Luna, supports visual input, targets decisions within hundreds of milliseconds, and is aimed at constrained decision-making scenarios (m3).
Product form: the model chooses from a set of predefined options rather than open-ended generation, for structured decision scenarios (m5).
- Elvis Saravia noted the API is one of OpenAI's new research/productization efforts, with capability details on the official page (m4).
Unconfirmed
- Specific pricing and availability await confirmation in official docs (m5).
Why It Matters
- iannuttall raised the question: if fast decision tasks are absorbed by this ultra-low-latency, low-cost specialized API, it could suppress rather than boost overall inference compute demand—the so-called "Jev killer" effect.
- A comment relayed by marlenezw suggested this could open up an entirely new API category.
2026-09-30 ~ 2026-09-30 · 9 related posts
Primary sources
- OpenAI launches Decisions API on Luna — is it a 'Jevons paradox killer'? — iannuttall · 2026-09-30
- OpenAI launches Decisions API, its answer to Jev — Rasmic · 2026-09-30
- OpenAI ships a new decisions API that makes models pick from predefined options — marlene_zw · 2026-09-30
- [source] OpenAI ships Decisions API: Luna-powered visual decisions in under a few hundred ms — YashasGunderia · 2026-09-30
- OpenAI's new Decisions API lets models pick from a predefined option set — marlene_zw · 2026-09-30
- OpenAI shares research progress page and launches Decisions API — omarsar0 · 2026-09-30
- [source] OpenAI launches Decisions API powered by GPT-6 Luna for real-time app decision-making — OpenAIDevs · 2026-09-30
- [source] OpenAI's Decisions API accepts text and image context, broad release within days — OpenAIDevs · 2026-09-30
- OpenAI's Decisions API from DevDay sparks debate over its purpose — Valuestudent · 2026-09-30