Synthesia

Generate presenter-led videos from a script, no camera needed

AI Video CreationFree planOverseas★★★★☆ 4.0

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What is Synthesia?

Synthesia turns a written script into a video of a presenter speaking it, using either stock AI avatars or a custom avatar modelled on a real person. You paste text, pick a voice and a language, and get a finished video with lip sync - no studio, camera or teleprompter. It is aimed squarely at corporate use: onboarding modules, compliance training, product explainers and internal announcements, especially where the same content must appear in several languages. Updates are the killer feature: fixing a factual error means editing a line of script and re-rendering, not booking a filming day.

Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.

Key features

Script-to-video with realistic AI avatars and lip sync
Custom avatars modelled on a designated real presenter, with consent
Voices and dubbing across a large set of languages
Templates for training, onboarding and explainer formats
Screen recording and slide import for software demonstrations
Brand kits and shared workspaces for teams

Pros & cons

Strengths

Localising a video into ten languages is a script edit, not a reshoot
Updating content costs minutes rather than a production day
No studio, crew or on-camera confidence required

Watch out for

Avatar delivery is good but not indistinguishable from a real presenter
Custom avatars raise consent and biometric-data questions that must be handled properly
Costs add up quickly for small teams producing few videos

Best for & use cases

corporate training, onboarding, compliance updates, multilingual explainers and internal communications

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FAQ

Do I need to film myself to make a custom avatar?

Yes - you record a short consented clip and Synthesia models the avatar from it. Companies should get written consent and check local rules on biometric data before doing this for employees or talent.

Can viewers tell the presenter is AI?

Often yes, particularly on longer takes. The technology has improved substantially but works best for clear informational content rather than persuasive or emotional storytelling.

What is Synthesia best at replacing?

Slide-narrated internal video. Anything that would otherwise be a talking-head recording for training or internal comms is usually faster and cheaper here.