OpenAI’s Help Center lists the legacy route for Agent mode: open a chat, select it from the composer’s Tools menu, or type /agent. But the same page says ChatGPT agent is no longer available and points readers to ChatGPT Work for longer, multi-step tasks. Treat the Tools menu and shortcut as legacy instructions, not confirmation that Agent mode is currently available to your account. (OpenAI Help Center)
Where to find ChatGPT Work
In the new ChatGPT desktop app, select ChatGPT, then choose Work from the Chat / Work toggle. OpenAI says Work chats sync across web, mobile, and desktop, so you can continue a cloud Work chat on those devices. The navigation instructions cited here are specifically for the desktop app. (OpenAI Help Center)
If you don’t see Work, first check whether you’re using the new ChatGPT desktop app rather than ChatGPT Classic; OpenAI notes that new agent features may be available only in the new app. For a managed workspace, access can also depend on workspace permissions. The available guidance does not establish one universal plan or account rule for access to Work, so check OpenAI’s current Help Center guidance or your workspace administrator rather than assuming cloud-browser requirements determine Work access. (OpenAI Help Center)
Is ChatGPT Agent Mode available through a production API?
The ChatGPT interface feature and developer APIs are separate offerings. OpenAI documents an Agents API beta for developers building applications with an OpenAI-managed Codex agent; that is not an API for invoking the Agent mode button in ChatGPT. Confirm the beta’s current status and requirements in the developer documentation before choosing it for a production application. (OpenAI Help Center)
Bottom line: The legacy Agent mode location was Tools → Agent mode, with /agent also listed as a shortcut. OpenAI says ChatGPT agent is no longer available and points users to Work. In the new desktop app, find Work using the Chat / Work toggle; if it’s missing, check the app version and workspace permissions, then consult current official guidance.
Sources
ChatGPT agent — OpenAI Help Center