Synthesia vs HeyGen — the two leading AI avatar video platforms. Both turn a script into a video of a realistic avatar; they diverge on who they’re built for. Synthesia leans enterprise training and L&D; HeyGen leads on avatar realism and video translation. Pricing verified June 2026.
Quick verdict
- Choose Synthesia for enterprise training & L&D at scale — SCORM/LMS export, governance, and polished training workflows.
- Choose HeyGen for the most realistic avatars and best-in-class one-click video translation — ideal for marketing, social, and localization.
Side-by-side comparison
| Synthesia | HeyGen | |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Best for | Enterprise training & L&D | Avatar realism & translation |
| Avatar realism | Strong | Best-in-class (G2 9.2/10) |
| Languages | 140+ | 175+ |
| Video translation | Yes | One-click, standout |
| LMS / SCORM export | Yes (Enterprise) | Limited |
| Free tier | Yes (~3 min/mo) | Yes (very limited) |
| Entry paid | $18/mo annual | $24/mo annual |
| Best fit team | L&D / global orgs | Marketing / social / localization |
| Full review | Synthesia review | HeyGen review |
The bottom line
Pick Synthesia if you’re standardizing training across a large or global organization and need LMS/SCORM and governance. Pick HeyGen if avatar realism and effortless multilingual translation matter most — its avatars are the best in the category. Both use credit-based pricing, so model your monthly minutes before committing. See more in our best AI tools guide.
Frequently asked questions
Which is better, Synthesia or HeyGen?
Both score 4.0/5. Choose Synthesia for enterprise training and L&D at scale with SCORM/LMS export and governance. Choose HeyGen for the most realistic avatars and best-in-class one-click video translation, ideal for marketing, social, and localization.
How much do Synthesia and HeyGen cost?
Synthesia’s entry paid plan starts at $18/mo billed annually, and HeyGen’s entry paid plan starts at $24/mo billed annually. Both also offer a free tier: Synthesia gives about 3 minutes per month and HeyGen’s free tier is very limited.
Which tool has more realistic avatars and more languages?
HeyGen has best-in-class avatar realism (a G2 score of 9.2/10) and supports 175+ languages with standout one-click video translation. Synthesia’s avatar realism is strong and it supports 140+ languages.
Which tool is better for enterprise training?
Synthesia is the stronger fit for enterprise training, offering LMS/SCORM export on its Enterprise plan, whereas HeyGen’s LMS/SCORM export is limited.