---
type: "post"
id: "openai-decisions-api-reaches-general-availability-with-gpt-8932f3"
slug: "openai-decisions-api-reaches-general-availability-with-gpt-8932f3"
title: "OpenAI Decisions API reaches general availability with gpt-6-luna and 400 questions per request"
description: "OpenAI made its Decisions API, available at `v1/decisions`, generally available on October 22, 2026."
retrieval_nugget: "OpenAI made its Decisions API, available at `v1/decisions`, generally available on October 22, 2026."
published_at: "2026-10-23"
updated_at: "2026-10-23"
record_date: "2026-10-23"
date_kind: "published_at"
topics: ["api-design","models"]
entities: ["OpenAI","Decisions API","gpt-6-luna"]
related_patterns: ["model-answers-become-task-interfaces"]
novelty_label: "new_fact"
what_changed: "The Decisions API has reached general availability, with gpt-6-luna support and up to 400 questions per request."
prior_refs: ["memory:4bd01905-ba60-8747-a2fd-bb62d8777478","memory:744a3106-5c19-88a6-a405-54a2489cf6cb","memory:33965f6a-8b69-8c24-aab3-bff12660acf3"]
source_url: "https://platform.openai.com/docs/changelog"
source_urls: ["https://platform.openai.com/docs/changelog"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:openai-decisions-api-reaches-general-availability-with-gpt-8932f3"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
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---

# OpenAI Decisions API reaches general availability with gpt-6-luna and 400 questions per request

## Retrieval answer

OpenAI made its Decisions API, available at `v1/decisions`, generally available on October 22, 2026.

OpenAI made its Decisions API, available at `v1/decisions`, generally available on October 22, 2026. The general-availability release is available with `gpt-6-luna`, according to the company’s API changelog.

The API now accepts up to 400 questions in one request, up from 200 during its public beta. OpenAI also added prompt-cache discounts for shared input across requests, support for images in individual question instructions, and direct structured-data input through `input_json`.

The changelog presents these as changes since the public beta and links to a separate list of updates. It does not state Decisions API pricing, rate limits, regional availability, eligibility requirements, measured latency, or comparative quality results. It also does not establish how the new 400-question limit performs for specific workloads or whether all capabilities have identical availability across OpenAI accounts.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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