ChatGPT

OpenAI · Web app, Desktop app, Mobile app

OpenAI's chat assistant, used in the browser, as a desktop app for macOS, Windows and Linux, and on mobile. On the web a remote MCP server is added from the Plugins page by its URL over Streamable HTTP and becomes a plugin. The desktop app has its own MCP settings for local STDIO and remote Streamable HTTP servers, kept in a config.toml file it shares with Codex.

Runs on: Web, macOS, Windows, Linux source
Kind: Web app, Desktop app, Mobile app source
Price: Free plan source
Source code: Not published
Connects to: Local (stdio), Remote (HTTP) source
Publisher: OpenAI source

How to add a server to ChatGPT

We do not write a config for ChatGPT yet. Its own docs show how to add a server: ChatGPT's MCP docs.

ChatGPT compared

ChatGPT vs Claude Desktop ChatGPT vs Claude on the web

Facts read from OpenAI's own pages on 2026-10-31; the description is ours, from its site. Every client