# OpenAI launches public beta of Decisions API on GPT-6 Luna

> The new API returns typed probabilities and scores about ten times faster than the older Responses API, costing $0.10 per million input tokens.

Oossa · 2026-10-09 · https://oossa.com/en/openai-launches-public-beta-of-decisions-api-on-gpt-6-luna

OpenAI has opened its Decisions API to the public in beta. The service runs on the GPT-6 Luna model and gives typed probabilities, choices and scores. It is about ten times faster than the previous Responses API. OpenAI bills $0.10 for each million input tokens and does not charge for output.

## The facts

- Public beta launched on 2026-10-09 ("Fri Oct 09 2026")
- Pricing: $0.10 per 1 M input tokens, no output fees

## Why it matters

Developers can get quick, structured decision data at low cost, enabling faster AI‑driven workflows.

## Sources & references

1. [OpenAI Decisions API Hits Public Beta With 10x Faster Typed Answers](https://www.marktechpost.com/2026/10/09/openai-decisions-api-hits-public-beta-with-10x-faster-typed-answers/) – MarkTechPost, 2026-10-09

Last updated: 2026-10-09