Synthesia review

Best for

Companies producing training, onboarding and internal communications videos

Price

Freemium · from $18/month
Free: 10 minutes of video a month, 9 avatars, with a Synthesia watermark

Platforms

Web, API

Made by

Synthesia Ltd, London, UK · since 2017

What it is

Synthesia makes presenter-led videos from a script using 240+ stock avatars or a personal avatar made from a photo or short video, with a live consent check. It is built for training and company communications, with dubbing, brand controls and team review, and runs in the browser.

Latest: Synthesia raised $200M at a $4B valuation in January 2026, led by Google Ventures.

What the AI does

• Full-body stock avatars with gestures
• Personal avatars from a photo or video
• Voice cloning
• AI dubbing into 130+ languages
• AI-generated scenes
• API

Pros and cons

How it scores

Close to HeyGen on presenter quality and very easy for business users; scores lower on platforms because it is web and API only.

Feature checklist · 6 of 9

• ✓Custom avatar or digital twin of yourself (yes)
• ✓Talking avatar from a single photo (yes)
• ✓Voice cloning (yes)
• ✓Video translation or dubbing with lip sync (yes)
• –Turn documents, slides or web pages into videos (no)
• –4K export (no)
• ✓SCORM export for learning platforms (LMS) (yes)
• –iOS and Android apps (no)
• ✓Developer API (yes)

How we score apps →

Alternatives

See all Synthesia alternatives, ranked →

• HeyGen 8.9/10Marketers, creators and sales teams making talking-head, explainer and translated videos
• Colossyan 8.0/10Learning and development teams building interactive training courses
• D-ID 7.9/10Quick talking-photo videos and low-cost avatar clips on any device
• DeepBrain AI Studios 7.4/10Small teams that need lots of presenter-led explainers and training videos on a budget

HeyGen vs SynthesiaSynthesia vs ColossyanSynthesia vs D-ID

Sources

• Synthesia pricing
• Synthesia AI avatars
• Synthesia raises $200M Series E at $4B valuation (Seedcamp)
• Synthesia (Wikipedia)