Custom GPTs

Custom GPTs are no-code chat assistants you build inside ChatGPT — instructions, knowledge files, conversation starters, optional Actions (REST APIs the GPT can call). They live behind chat.openai.com/gpts; you build them in a visual editor at chatgpt.com/gpts/editor. The GPT Store is the marketplace; usage requires a paid ChatGPT account. Different from Apps SDK — Custom GPTs are no-code and ChatGPT-only; Apps SDK is code-first and ships as MCP servers. Sourced from help.openai.com.

• GPT.1 Custom GPTs, plainly sourced

  Five-minute orientation to Custom GPTs — OpenAI's no-code chat assistants you build inside ChatGPT. What they are, how they differ from the Apps SDK and GPT Actions, what they're good for, and what they aren't.