Synthesia

Synthesia is the leading AI video platform for creating professional presenter-led videos without cameras, actors, or studios. Type your script, choose from 230+ AI avatars, pick one of 140+ languages, and your video is ready in minutes.

It is used by 60,000+ companies including Google, Nike, Reuters, and the BBC — primarily for corporate training videos, product explainers, onboarding content, and localized marketing at scale. The quality has improved dramatically in 2026: lip-sync is near-perfect, avatars look natural, and custom avatar creation from a 15-minute recording is available on paid plans.

The biggest use case is localization — one video can be automatically dubbed into 140 languages with the same avatar, eliminating the need for re-shooting or hiring local talent. For global companies, this alone justifies the cost.

Synthesia is not a general-purpose video generator like Runway. It is purpose-built for talking-head, presenter-style corporate video at scale.