~openai/gpt-luna-latest
This model always redirects to the latest model in the OpenAI GPT Luna family.
This model always redirects to the latest model in the OpenAI GPT Luna family.
Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.
This model always redirects to the latest model in the OpenAI GPT Luna family.
OpenAI GPT Luna Latest costs $0.20/M input tokens and $1.20/M output tokens, with separate rates for Cache Read at $0.02/M tokens, Cache Write at $0.25/M tokens and Web Search at $10.00/1K calls.
OpenAI GPT Luna Latest has a 1,050,000 token context window. It supports up to 128,000 completion tokens.
Yes. OpenAI GPT Luna Latest accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
OpenAI GPT Luna Latest accepts files such as PDFs, images and text as input and returns text.
GPT-6 Astra, GPT-6 Astra Pro, GPT-5.6 Luna Pro and 56 more are other text models from OpenAI.
OpenAI GPT Luna Latest was released on September 11, 2026. Its knowledge cutoff is February 16, 2026.