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OPENAI · MODEL RELEASE TRACKER

gpt-6-luna

gpt-6-luna is the model currently supported by OpenAI's new Decisions API (announced Oct 7, 2026). The Decisions API is in public beta and provides decision-style outputs for text and images; pricing for input tokens is $0.10 per million, with output tokens free.

CURRENT SNAPSHOT4/5 DIMENSIONS WITH DATA

The dimensions that change the decision.

PRICING
Decisions API pricing for input tokensDecisions API usage with gpt-6-luna is priced at $0.10 per million input tokens; output tokens are free.
CONTEXT WINDOW

Not established from the available sources.

MODALITIES
Input modalities supportedThe Decisions API evaluates text, images, or both; gpt-6-luna is the only model supported by that API at launch.
BENCHMARKS
Performance vs Responses APIThe Decisions API — and thus gpt-6-luna when used via that API — runs about ten times faster than the Responses API, per the announcement.
AVAILABILITY
Supported by Decisions API (public beta)As of the announcement, only gpt-6-luna is supported by OpenAI's Decisions API, which is in public beta with general availability coming soon.

RELEASE TIMELINE

Published, source-backed release events only.

3 SOURCES · IMPORTANCE 8.0

OpenAI launches Decisions API (public beta) using gpt-6-luna

OpenAI introduced the Decisions API in public beta, a service that evaluates text, images, or both and returns structured outputs (yes/no probabilities, category picks, or scale ratings). It uses only gpt-6-luna, is roughly ten times faster than the Responses API, charges $0.10 per million input tokens (output tokens free), supports zero-data retention and HIPAA-compliant use in the US and Europe, and comes alongside a simplified paid tiering (Build, Launch, Grow) with $500/$5,000/$200,000 monthly thresholds.

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VERIFIABLE FACTS

Every value stays attached to a source and date.

WHAT CHANGED

Stored passport versions, without reconstructed history.

Passport created6 facts