OpenAI GPT-6 Luna - Box Dev Docs

According to OpenAI, OpenAI GPT-6 Luna is a fast, cost-efficient model in the GPT-6 family, designed for high-volume, general-purpose work.

Model details

Item	Value	Description
Model name	GPT-6 Luna	The name of the model.
Model category	Standard	The category of the model: Standard, Premium, or Ultra.
API model name	`openai__gpt_6_luna`	The name of the model that is used in the . You must provide this exact name for the API to work.
Compliance	N/A	Government compliance frameworks and authorizations applicable to this model.
Hosting layer	OpenAI	The trusted organization that securely hosts the LLM.
Model provider	OpenAI	The organization that provides this model.
Release date	September 22nd, 2026	The release date for the model.
Knowledge cutoff date	May 18th, 2026	The date after which the model does not receive information updates.
Input context window	1,050,000 tokens	The number of tokens supported by the input context window.
Maximum output tokens	128k tokens	The number of tokens that can be generated by the model in a single request.
Empirical throughput	Not specified	The number of tokens the model can generate per second.
Open source	No	Specifies whether the model’s code is available for public use.