OpenAI AI Updates: October 23, 2026

1. Decisions API Reaches General Availability on GPT-6 Luna

OpenAI. OpenAI made the Decisions API (v1/decisions) generally available with gpt-6-luna, positioning it as a way to get “fast, focused, low-cost decisions for any application.” The endpoint returns typed answers to developer-defined questions (conditions, fixed-option selections, rubric scores) over text and images instead of free-form text, and OpenAI said at the October 6 beta launch that it returns answers 10x faster than the Responses API. The GA release adds prompt-cache discounts for input shared across requests, images inside individual question instructions, and structured data passed directly via input_json. Each request now supports up to 400 questions, up from 200 during the public beta. Source Source

2. Uber Rolls Out ChatGPT Work to More Than 30,000 Employees

OpenAI. OpenAI announced that Uber is deploying ChatGPT Work to all of its employees, more than 30,000 people. According to OpenAI, Uber teams will use it to research, analyze data, create presentations and complete complex multi-step workflows. Source

3. API Platform Adds Controls to Restrict Which Service Tiers Projects Can Use

OpenAI. OpenAI’s API changelog for October 21 lists a new Platform setting that lets customers choose which service tiers each project can use. Organization-level settings can also restrict service tiers across all projects, and requests that use a disallowed tier return documented service tier errors. Source