As of July 2026 OpenAI does not publish a ChatGPT bot inside the Microsoft Teams client. What it publishes is the Microsoft Teams app for ChatGPT: a plugin that runs inside chatgpt.com and reads your Teams chats, channels and group chats. Unusually, and unlike the equivalent Claude connector, it can also write - creating chats and channels and sending messages and replies - but only when an admin has enabled actions, and only initiated from ChatGPT rather than from Teams. There are two variants: a self-service one for Business, Enterprise and Edu, and an admin-managed read-only sync for Enterprise and Edu. If you want something people can mention in a Teams channel, your real options are Microsoft 365 Copilot, a third-party Teams app, or a bot you build on the Teams SDK.

