Provider

OpenAI API models and prices

The GPT-6 family is sold through the Responses API, which is also where tool calling, hosted shell, computer use and remote MCP live. Prompts over 272K tokens are billed at a higher rate for the whole request, and a paid Fast mode replaced what used to be called Priority processing.

API list prices of models used to build agents

GPT-6 Astra gpt-6-astra	⁨$10⁩^*	⁨$1⁩	⁨$50⁩	1.05M	2026-09-08
GPT-6.1 Sol gpt-6.1-sol	⁨$2⁩^*	⁨$0.10⁩	⁨$10⁩	1.05M	2026-09-29
GPT-6 Luna gpt-6-luna	⁨$0.10⁩^*	⁨$0.010⁩	⁨$0.50⁩	1.05M	2026-09-22

US dollars per million tokens, standard tier, short-prompt rate · * long prompts cost more

Official price page ↗Compare in the calculator

Recent changes

Sep 29, 2026ModelGPT-6.1 Sol released
Sep 29, 2026APIDevDay 2026 keynote
Sep 29, 2026APIComputer use added to the Agents API
Sep 29, 2026PriceUltrafast mode for GPT-6 Astra
Sep 22, 2026ModelGPT-6 Sol and GPT-6 Luna released
Sep 10, 2026APIAgents API public beta