OpenAI for developers
Docs and resources to help you build with, for, and on OpenAI.
Codex
Build and ship faster with our coding agent — everywhere you work.
API Platform
Use our APIs and models to build your own AI experiences.
Apps SDK
Extend ChatGPT with your apps built on top of the Model Context Protocol.
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Docs MCP
Search and read OpenAI developer docs from your editor using MCP.
Gpt-image-1.5 Prompting Guide
Cookbook to prompt gpt-image-1.5 for reliable image generation results.
GPT-5.2 Prompting Guide
Cookbook to prompt GPT-5.2 for accurate, concise enterprise workflows.
Codex Prompting Guide
Codex models advance the frontier of intelligence and efficiency and our recommended agentic coding model. Follow this guide closely to ensure you’re getting th
Transcribing User Audio with a Separate Realtime Request
Cookbook to transcribe user audio using out-of-band Realtime sessions.
Modernizing your Codebase with Codex
Cookbook to modernize legacy codebases using the OpenAI Codex CLI.
