OpenAI Decisions API now available on AI Gateway
OpenAI's Decisions API is now live on Vercel's AI Gateway—route, triage, and score without generating text.
Why it matters
OpenAI's Decisions API, a specialized classification model separate from GPT-6 Luna, is now available through AI Gateway with OpenAI-compatible endpoints. This lets practitioners route, triage, and apply guardrails using predicate, choice, and score questions in a single request, billed at Decisions rates rather than language-model rates.
The key facts
13 to knowDecisions API available on AI Gateway with OpenAI-compatible endpoint
Separate model ID (openai/gpt-6-luna-decisions) from language model
Supports predicate (yes/no), choice, and score questions in one request
Callable via OpenAI SDK 7.30.0+ (JavaScript) or 3.26.0+ (Python), or AI SDK 7.0.128+
Billed separately at Decisions API rates
Also works with other decision models (JevLiquid d1, Laya) on AI Gateway
Published 2026-10-07
Decisions API available via OpenAI-compatible endpoint on AI Gateway
Separate model ID (openai/gpt-6-luna-decisions) from text generation model
Accessible via OpenAI SDK (JS 7.30.0+, Python 3.26.0+), AI SDK, HTTP API, or CLI
Compatible with decision models including Jov, Liquid d1, and Laya
Billed at Decisions API rates, not standard GPT rates
Integration point: point OpenAI SDK at AI Gateway and call decisions.create()
The story so far
Earlier coverage of this storyline
- Laya decision model now available on AI Gateway, free through October 31Vercel Blog
- Microsoft AI models are now available on AI GatewayVercel Blog
- OpenAI Ultrafast mode now available on AI GatewayVercel Blog
- This story
Go to the source
Vercel Blogvercel.com
Publisher excerpt: is now available on through an OpenAI-compatible endpoint. Use it with or any other decision model on AI Gateway.OpenAI's Decisions APIAI GatewayGPT-6 Luna Decisions/v1/decisions Decision models answer typed questions about a shared input and return probabilities, choices, and scores instead of…