GPT-6 Luna Decisions

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input · usd / 1m tok

$0.10

output · usd / 1m tok

$0.00free

context window

1.05mtokens

modalities · in → out

pricing

base api ratesusd per 1m tokens

input: $0.10over 272k · $0.20
output: $0.00 freeover 272k · $0.00

brackets are by input tokens per request: a request over a threshold is billed at that bracket's rates for all of its tokens. cache creation can have a separate charge.

providers

OpenAI hosts GPT-6 Luna Decisions. Impossibl routes your request intelligently and handles failover automatically when a provider is down.

OpenAI

specifications

takes text and image in, gives typed answers outopenai/gpt-6-luna-decisions

creatorOpenAI
model typeEvaluation
context window1,050,000 tokens
maximum outputnot published
input
takes text and image in, gives typed answers out
outputtyped answers with probabilities
tool callingnot supported
releasedoct 6, 2026
endpoint/v1/decisions

unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.

benchmarks

benchmark results are not available for this model yet.

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frequently asked questions

What is GPT-6 Luna Decisions?

GPT-6 Luna Decisions is GPT-6 Luna served through OpenAI's Decisions API: it reads text or images against typed yes/no, choice, and score questions and returns probabilities and confidence instead of generated text. It is built for classification, routing, and choosing an agent's next action in a single fast call, and bills input tokens only.

How much does GPT-6 Luna Decisions cost?

GPT-6 Luna Decisions costs $0.10 per million input tokens and $0.00 per million output tokens through the Impossibl API. These base rates apply through 272,000 total input tokens per request. Above 272,000 input tokens, the long-context rates in the pricing table apply to the whole request. All rates are in USD.

view the pricing table ↑

What is the context length of GPT-6 Luna Decisions?

GPT-6 Luna Decisions has a 1,050,000-token context window through the Impossibl API.

Does GPT-6 Luna Decisions support tool calling?

No. GPT-6 Luna Decisions does not support tool calling through the Impossibl API.

What inputs and outputs does GPT-6 Luna Decisions support?

GPT-6 Luna Decisions accepts text and image as input. GPT-6 Luna Decisions returns typed answers with probabilities.

How do I use GPT-6 Luna Decisions through an API?

GPT-6 Luna Decisions is available through the Impossibl API. Use openai/gpt-6-luna-decisions as the model identifier with /v1/decisions. The quickstart explains how to create an API key and send your first request.

follow the api quickstart →

When was GPT-6 Luna Decisions released?

OpenAI released GPT-6 Luna Decisions on October 6, 2026.

Creator release announcement ↗

this page describes GPT-6 Luna Decisions as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes. model descriptions and release dates, where available, use the creator sources linked under the answers above.

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