Watch the Synthesia avatar before you buy
The same 60-second script, rendered through Synthesia with uniform lighting and no cherry-picking.
- The training and L&D standard
- Widest language coverage we tested
- Polished, professional avatars
- SOC 2 / enterprise-grade security
- Easy doc-to-video workflow
- No real-time interactive avatars
- Less suited to punchy social/UGC ads
Our verdict on Synthesia
Synthesia is the default choice for corporate training, and after testing it the reputation is earned. The avatars are polished and professional rather than flashy, the editor is built for non-video people, and turning a script or document into a finished course video is genuinely fast.
Language coverage is the widest of anything we tested, which matters enormously for global L&D teams who need the same module in 30 languages without re-shooting. Security and compliance are enterprise-grade, which is often the deciding factor for large buyers.
Where it loses ground to HeyGen is interactivity — there are no real-time conversational avatars — and it is not the tool you reach for to make scrappy social ads. For its core job, scaled training video, nothing is more dependable.
Synthesia in depth
Realism & lip-sync
Synthesia scores 9.0/10 for realism in our blind panel — among the most lifelike avatars we tested. We grade facial motion and lip-sync frame by frame on an identical 60-second script, so the number reflects motion quality, not a marketing reel.
Avatars & customization
The library covers 230+ avatars. Custom avatar cloning is yes and voice cloning is yes, so you can build a presenter from your own footage. Customization is a genuine strength here.
Languages & voices
Synthesia supports 140+ langs — wide enough for most global teams. Non-English realism held up well in our tests.
Real-time & API
Real-time / interactive avatars: no. Developer API: yes. Synthesia renders finished videos rather than holding a live conversation; for real-time use, look at HeyGen or D-ID. The API makes it straightforward to wire into your own pipeline.
Who Synthesia is (and isn't) for
Best for: Enterprise L&D teams producing course and onboarding video at scale. Where it's the wrong call: no real-time interactive avatars; less suited to punchy social/ugc ads. If those trade-offs don't touch your use case, Synthesia earns its 90/100 Index Score.
What Synthesia costs
| Free plan | Yes — test the avatar quality before paying |
|---|---|
| Starts from | $29/mo |
| Value score | 8.2/10 |
| Best entry offer | Free plan available |
Plans and credit limits change often — pricing shown is as of 2026-06-09. Always confirm on the vendor's site.
See live Synthesia pricing ↗How Synthesia scores
Synthesia FAQ
Is Synthesia the best tool for training videos?
For corporate training and L&D, yes — Synthesia is the category standard, with the widest language support and an editor built for non-video teams.
How many languages does Synthesia support?
Synthesia supports 140+ languages, the widest coverage of any avatar tool we tested.
Does Synthesia do real-time avatars?
No. Synthesia renders finished videos; for real-time interactive avatars look at HeyGen or D-ID.
