The Action Button is a new physical button located on the left edge of newer versions of the iPhone, just above the volume up and down.

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OpenAI's ChatGPT Advanced Voice Mode can now be mapped to the Action Button on newer iPhone models (iPhone 15 Pro and up) running iOS 18 or later. This allows for a more accessible activation of ChatGPT's voice interactions. The post provides a step-by-step guide on setting up this feature through the iPhone's settings, as well as how to place a ChatGPT widget on your Lock Screen for easy access.

How to map OpenAI’s ChatGPT Advanced Voice Mode to your iPhone action button

You need a newer iPhone from 15 Pro and up

Download the official ChatGPT iOS app from the App Store

Go to ‘Settings’ to re-assign the iPhone Action Button

Bonus: setting ChatGPT Advanced Voice Mode up on your Lock Screen widgets