Facebook's alt text descriptions are currently available in 45 different languages. What you need to know The latest version of Facebook's automatic alternative text (AAT) promises to further improve the photo experience for the visually impaired. Facebook's AAT can now identify activities, landmarks, types of animals, and more. Additionally, it can now provide information about the positional location and relative size of different elements in a photo. Facebook's automatic alternative text (AAT) technology, which was introduced in 2016, makes it possible for the visually impaired to enjoy their news feed by providing them with descriptions of photos on demand. The social networking giant has now unveiled the "next generation of AAT," which brings multiple technological advances to further improve the photo experience for blind or visually impaired users. Facebook says it used weak supervision based on billions of Instagram photos and their hashta