Build leading AI products on OpenAI’s platform Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT(opens in a new window) Webinar Join us October 13 at 9:30 AM PDT to hear how Cognition integrated GPT‑Live‑1 into Devin—and saw 40% more sessions. Register now(opens in a new window) Build leading AI products on OpenAI’s platform Contact sales Start building Powered by our frontier models Our industry-leading models deliver advanced intelligence and multimodal capabilities. GPT-6 Astra Input: $10.00 per 1M tokens Output: $50.00 per 1M tokens 1.05M context length 128K max output tokens Knowledge cut-off: Apr 30, 2026 Learn more(opens in a new window) (opens in a new window) GPT-6.1 Sol Input: $2.00 per 1M tokens Output: $10.00 per 1M tokens 1.05M context length 128K max output tokens Knowledge cut-off: Apr 30, 2026 Learn more(opens in a new window) (opens in a new window) GPT-6 Luna Input: $0.10 per 1M tokens Output: $0.50 per 1M tokens 1.05M context length 128K max output tokens Knowledge cut-off: May 18, 2026 Learn more(opens in a new window) (opens in a new window) Pricing above reflects standard processing rates for context lengths under 272K. Learn more about Batch Processing⁠⁠(opens in a new window) and Data residency & Regional Processing⁠(opens in a new window). Start building with frontier models Start building(opens in a new window) Prompting guidance Learn how to prompt GPT‑6 series for highest performance. View prompting guidance(opens in a new window) Migration support Learn how to migrate from other OpenAI models to the GPT‑6 series. View migration guide(opens in a new window) Model best practices Learn how to optimize GPT‑5.6 performance from our startup community. View builder's guide(opens in a new window) The all-in-one platform for agents Build agents that use your context and tools to get work done across your systems. Learn more(opens in a new window) Start building(opens in a new window) Dark-themed code editor showing a Python agent configuration script on a blue gradient background. Build Create agent workflows with the Agents SDK and Responses API, and add voice with GPT‑Live‑1. Six rounded square tool icons on a blue gradient background, including code, globe, sparkle, and image symbols. Ground Give agents relevant context through built-in tools like web search, file search, and remote MCP servers. Four app icons — Slack, Gmail, Salesforce, and GitHub — displayed on a blue gradient background. Act Connect agents securely to business systems so they can take action across workflows. Bring AI experiences to life Voice Image Build voice experiences that listen and respond naturally in real time with GPT‑Live‑1. GPT-Live-1 API | Yelp source demo still 00:0201:05 Use cases driven by our platform Contact sales Start building(opens in a new window) A command-line prompt inside brackets in a white square on a pale blue background. Coding Accelerate development cycles with models that write, review, debug, refactor, and migrate code. View customer stories Headset icon in a white square on a blue background. Customer support Deliver faster customer support with models that resolve issues autonomously and handle customer queries. View customer stories Person-and-heart icon in a white square on a blue and yellow background. 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