A company spokesperson says the "limited test" is happening because the "vast majority" of Instagram uploads are vertically-oriented content.
Elon Musk's new AI tool faces considerable backlash for its unchecked generation of controversial content.
WhatsApp is developing a new feature that will allow users to choose between various Meta AI chat mode voices.
The Abu Dhabi-based company hopes to treat idiopathic pulmonary fibrosis, and has 30 more drugs in the pipeline.
