Synthesia automates the creation of professional video content by generating on-screen presenters from text, eliminating the need for actors, studios, or filming. It solves the friction of video production at scale—useful for training materials, marketing, or localization work. The core differentiator is breadth: 160+ language options and a library of customizable avatars mean one script can spawn dozens of localized videos. The free tier lets you create limited videos; paid plans start around $30/month for individual creators and scale to custom enterprise pricing. The catch: synthetic avatars still read as synthetic, and the output quality hinges on script clarity and avatar selection—this isn't a replacement for human talent when authenticity is the goal.