Head to head / AI Video
Captions vs Synthesia
- →Captions is cheaper to start ($9.99/mo vs $29/mo).
| Compared | Captions | Synthesia |
|---|---|---|
| Starting price | $9.99/mo | $29/mo |
| Free tier | — | — |
| Visit Captions | Visit Synthesia |
Feature by feature
| Feature | Captions | Synthesia |
|---|---|---|
| Avatars | Yes (AI creators) | 230+ |
| Custom avatar | Yes (digital twin) | Yes |
| Languages | 100+ | 140+ |
| API | Yes (higher tiers) | Yes |
| Free watermark | Removed on paid | Yes |
| Voiceover | Yes (TTS + dub) | Yes |
Captions
Solo creators producing faceless short-form video (Reels, TikTok, Shorts) on mobile.
- +All-in-one editor on mobile
- +AI avatars, digital twins and voice cloning
- +Dubbing and captions in 100+ languages
- +Fast automated captioning
Synthesia
Enterprises and L&D teams producing multilingual talking-head videos at scale.
- +230+ avatars across 140+ languages
- +Enterprise-grade security and compliance
- +Easy PowerPoint-to-video workflow
- +Brand kits and team collaboration
Compared on the metrics we track for this category. Prices are the cheapest paid tier. Some links are affiliate links.