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GPT-5.6 Luna Pro vs GPT-5.6 Sol Pro: side-by-side summary

GPT-5.6 Luna Pro and GPT-5.6 Sol 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 $0.10/M tokens input, $0.60/M tokens output on OpenRouter.

GPT-5.6 Sol Pro, from OpenAI, has a 1,050,000-token context window and is priced at $5/M tokens input, $30/M tokens output on OpenRouter.

Context window
  • GPT-5.6 Luna Pro: 1,050,000 tokens
  • GPT-5.6 Sol Pro: 1,050,000 tokens
Price
  • GPT-5.6 Luna Pro: $0.10/M tokens input, $0.60/M tokens output
  • GPT-5.6 Sol Pro: $5/M tokens input, $30/M tokens output
Provided by
  • GPT-5.6 Luna Pro: OpenAI
  • GPT-5.6 Sol Pro: OpenAI
  • GPT-5.6 Luna Pro model details, providers and pricing
  • GPT-5.6 Sol Pro model details, providers and pricing