Synthesia is the reference AI avatar video platform — script in, polished avatar video out, in dozens of languages.
This review reflects use across corporate L&D, explainer video and marketing localisation workflows.
Synthesia at a glance
Synthesia converts scripts into avatar-led videos with automated voiceover, backgrounds, captions and localisation.
Avatar quality
The stock avatar library is huge and improving; custom avatars are the paid upgrade path for brands.
Editing workflow
The editor is genuinely fast — script changes reflow the video in minutes rather than a full re-render.
Pricing
Free tier (3 min/mo), Starter $29/mo, Creator $89/mo, Enterprise custom.
Editorial verdict
Synthesia earns its place for corporate training and localised explainer video. For creative or narrative video, Runway is a better fit.
Pros and cons
Pros
- Huge avatar library
- Fast script-to-video workflow
- Team collaboration
- Strong localisation
Cons
- Avatar look still reads as AI
- Enterprise pricing gets steep
- Not for narrative filmmaking
Platform details
- Stock & custom avatars
- 140+ languages
- Templates
- Screen recording
- PPTX import
- Team workspaces
- Free (3 min/mo)
- Starter $29/mo
- Creator $89/mo
- Enterprise custom
- PPTX import
- LMS export (SCORM)
- Vimeo
- YouTube
- API
- Corporate training
- Explainer videos
- Localised video at scale
Synthesia editor, avatar library and PPTX import views (placeholder).
Alternatives to consider
- Runway Review
For creative / narrative video.
- Elevenlabs Review
For higher-quality voice-only output.
- Chatgpt Review
For scripting and outline work.
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Frequently asked questions
Is Synthesia worth it?
For corporate L&D and localisation — yes. For creative video — Runway is better.
Can I create a custom avatar?
Yes — Creator and Enterprise tiers support custom avatars.
How many languages does Synthesia support?
140+, including tone and dialect variants.
Does Synthesia have a free plan?
Yes — 3 minutes of video per month.