We asked ChatGPT and Gemini this question.
Here’s what they said: ChatGPT also clarified that “on personal ChatGPT accounts, content may be used to improve/train models unless you opt out.”
User Data Management Options for OpenAI and Gemini
OpenAI has introduced an ‘Improve the model for everyone’ feature, which allows the company to utilize user data for enhancing ChatGPT. Users can opt-out of this data collection by navigating to Settings > Data Controls and disabling this feature.
Additionally, when users upload images, they share biometric facial features and potentially metadata, such as the date or device specifications. Platforms process this information to edit the uploaded images. Users should be aware that depending on their account settings, images and prompt histories may be stored on cloud servers.
For those using Gemini, activity management is straightforward. Users can go to the Activity tab under Settings to turn off and delete their activity. Even with activity saving disabled, Google may temporarily retain chat data for up to 72 hours for safety and maintenance purposes before it is deleted.

