Synthesia vs HeyGen
Side-by-side comparison of Synthesia and HeyGen.
Turn text scripts into talking-head videos instantly
Create AI avatar videos without a camera
What they are
Synthesia
Synthesia generates studio-quality videos using AI avatars that lip-sync to a typed script, with no camera, microphone, or editing software required. It targets corporate trainers, marketers, and course creators who need to produce multilingual video content at scale. The output looks polished but has a recognizable AI avatar aesthetic that some audiences find less engaging than real presenters. Pricing starts at $14 per month on the Starter plan.
HeyGen
HeyGen generates studio-quality videos using AI avatars and text-to-speech voices, so creators and marketers can produce talking-head content without filming themselves. It supports over 175 languages and lets you clone your own voice and likeness. Teams use it for product explainers, onboarding videos, and localized content at scale. The avatar quality is impressive for scripted material, but unscripted or conversational styles still feel noticeably synthetic.
if you need ai video. It has a usable free tier to start with.
- +No filming or recording equipment needed
- +125-plus AI avatars and 160-plus languages available
- +Custom avatar creation lets you clone your own likeness
if you need ai video. It has a usable free tier to start with.
- +Realistic AI avatars reduce need for on-camera recording
- +Voice cloning reproduces your tone and accent with reasonable accuracy
- +Supports 175-plus languages for localized video without re-recording
Which to choose
Synthesia and HeyGen both cover ai video, so this is a real either-or for some teams. The right pick depends on which one's wider feature set and pricing fit how you work.
Read the full reviews for Synthesia and HeyGen.
Pricing checked 7 Jun 2026.