Instagram now supports horizontal videos lasting up to 90 minutes, according to a post by mattih. The post presents the long-form format as an opportunity for creators looking to build their brands on the platform.
What the post says
The reported support combines a horizontal video format with a maximum length of 90 minutes. The post focuses on creators who want to use longer videos for brand building.
Details remain limited
The post does not give a rollout date, explain which accounts can access the format or provide uploading instructions. It also does not include an official Instagram announcement confirming those details.

