The Meta Ai says this, but it has been proven that you can't turn it Meta Ai off on Facebook or Instagram.

Facebook AI, also known as Meta AI, is integrated into Facebook to provide personalized experiences. To limit or turn off Facebook AI features:

Method 1: Adjust Your Facebook Settings
Log in to your Facebook account.
Click on your profile picture, then select Settings & privacy.
Click on Settings.
Scroll down to AI and machine learning.
Toggle off AI-based suggestions.

Method 2: Use Facebook's Privacy Center
Log in to your Facebook account.
Click on your profile picture, then select Settings & privacy.
Click on Privacy Center.
Click on Face Recognition and toggle off.
Click on Ad Preferences and adjust your preferences.
Note: Disabling Facebook AI features may limit personalized experiences, such as targeted ads and content suggestions.