OpenAI's Decisions API vs System One: the same request in two shapes, and how to call 13 decision models with the OpenAI SDK
This story is from 2026-10-09. It is preserved in the archive; the latest stories are on the live feed.
OpenAI's Decisions API ( POST /v1/decisions , GPT-6 Luna Decisions, public beta since 2026-10-06) and the System One request that TypeSafe's Jev introduced say the same things in different words. If you already have code for one, the other is a mechanical translation. This post maps the two field b…
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- 2026-10-09 05:47 · DEV Community — AI
OpenAI's Decisions API vs System One: the same request in two shapes, and how to call 13 decision models with the OpenAI SDK