HeyGen vs Synthesia: which AI avatar video tool
Choose HeyGen for marketing and sales videos where you want a digital twin of yourself on screen, or an existing video translated with the voice synced to your lips. Choose Synthesia for training and onboarding material that has to exist in several languages and change often: it covers over 140 languages, and you update a video by editing the script. Both turn text into a presenter video without a camera, so the split is personal marketing against company training.
Which one to pick
HeyGen is the better pick when the face on screen should be yours, for sales outreach, explainers and social ads, or when you want a recorded video dubbed into another language with matching lip movement.
Synthesia is the better pick for a team producing training, onboarding or internal updates in many languages, where the script changes often and every edit should re-render without a new shoot.
Side by side
Questions
Does HeyGen cost less than Synthesia?
We have no confirmed starting price for either tool in our data, and neither is listed with a free plan. Both bill in US dollars per month. Compare the plans on each site against the number of video minutes you expect to produce, since that is what the tiers are built around.
Can I test HeyGen or Synthesia before paying?
Our data lists no permanent free plan for either. Look for a trial or demo video on each site and use it with your own script. Pay attention to how the avatar pronounces your brand and product names.
How hard is it to switch from Synthesia to HeyGen?
Your scripts carry over, because both tools start from text. Avatars, brand templates and any custom presenter do not, so you rebuild those in the new tool. Re-render one finished video first and compare before moving a whole course.
Which suits a solo creator and which a company team?
Both are listed for solo users and small to medium teams. HeyGen leans toward one person scaling their own presence with a digital twin. Synthesia leans toward a team keeping a library of training videos current in several languages.
Do they speak Spanish, German, French and Italian?
Synthesia presents videos in over 140 languages, which covers all four. HeyGen translates existing videos into other languages with lip-synced voice. You can sign up for either in Europe; test a sample in your language and accent before you produce a full series.