The reliability of your company’s data, workflows, and integrations plays a far bigger role than the model you choose.

OpenAI's GPT-5.6 family includes Sol, Terra, and Luna with tiered pricing from $1 to $5 per million input tokens, launching globally on July 9, 2026.

OpenAI introduces GPT-5.6 with three variants—Sol, Terra, and Luna—offering advanced capabilities in enterprise tasks, coding, and scientific research to meet diverse user needs.