Compare GPT-5.6 Luna Pro from OpenAI and GPT-6 Luna Pro from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
GPT-5.6 Luna Pro and GPT-6 Luna Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-5.6 Luna Pro, from OpenAI, has a 1,050,000-token context window and is priced at $0.20/M tokens input, $1.20/M tokens output on OpenRouter.
GPT-6 Luna Pro, from OpenAI, has a 1,050,000-token context window and is priced at $0.10/M tokens input, $0.50/M tokens output on OpenRouter.