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GPT-6 Luna

GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...

Context
1.05M
Input / 1M
$0.1
Output / 1M
$0.5
Released
Sep 22, 2026
View on OpenRouterFind it in the catalog
Specifications

GPT-6 Luna specs

Provider
OpenAI
Type
API model
Model ID
openai/gpt-6-luna
Context window
1,050,000 tokens1.05M
Input price
$0.1per 1M input tokens
Output price
$0.5per 1M output tokens
Accepts
file, image, text
Produces
text
Released
Sep 22, 2026
Popularity
48/100position #5 in OpenRouter's weekly usage ranking
Source
OpenRouter
Overview

About GPT-6 Luna

GPT-6 Luna is an API model from OpenAI, released on Sep 22, 2026, with a context window of 1,050,000 tokens, pricing of $0.1 per million input tokens and $0.5 per million output tokens. It accepts file, image, text input and produces text output.

At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.0015.

Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.

Tool callingStructured outputsJSON modeReasoning
Head to head

Compare GPT-6 Luna

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FAQ

GPT-6 Luna questions

What is the context window of GPT-6 Luna?

GPT-6 Luna supports a context window of 1,050,000 tokens.

How much does GPT-6 Luna cost?

GPT-6 Luna is listed at $0.1 per million input tokens and $0.5 per million output tokens on OpenRouter.

When was GPT-6 Luna released?

GPT-6 Luna was published on Sep 22, 2026.

What inputs does GPT-6 Luna accept?

GPT-6 Luna accepts file, image, text input and produces text output.