Can Siri control apps like ChatGPT agents?

Yes — but only in limited, app-supported ways.

Siri can trigger actions in apps that support Apple’s Siri/Shortcuts integration, and in some setups it can also hand off certain requests to ChatGPT. But Siri cannot natively take over and directly run arbitrary “ChatGPT agents” unless the app or workflow exposes specific actions for Siri to use.

For custom GPT-style agents, the usual approach is to build a Shortcut or app workflow that calls the relevant API or app action, then launch that through Siri. In practice, that means Siri can be part of the control flow, but the agent itself has to be integrated rather than freely controlled.

So the short answer is: Siri can control some app actions and can work with ChatGPT in supported integrations, but it cannot directly control any ChatGPT agent you want unless there’s an integration or Shortcut built for it.