Synthesia

What is Synthesia?

Synthesia is a platform for AI-generated videos: from a script, it produces clips with photorealistic avatars and voiceover in over 140 languages – no camera, microphone, or studio required. You choose an avatar, paste in your text, and the platform generates a video in which the character speaks your script in sync. With one click, the same content can be translated into many languages – a key advantage for companies operating internationally. Optionally, you can even create personalised avatars from your own footage.

Typical use cases include training, onboarding, and explainer videos. The free tier is limited to a few minutes of video with a watermark; paid plans remove the logo, unlock more avatars, and increase video minutes. Synthesia is also positioned as GDPR-compliant and offers an API for integration into your own systems.

Synthesia: Strengths and weaknesses

Synthesia's great strength is the professional scalability of presenter videos: training content can be rolled out in dozens of languages without a film crew, and updates take minutes instead of a reshoot. The avatars and voices are among the most convincing on the market, the interface is clean, and the documented GDPR focus makes the tool attractive for European companies.

Weaknesses: Synthesia is built for talking avatars and is not a free-form video generator – it does not create cinematic scenes or dynamic B-roll. Avatar videos can look slightly static in a pure front view, and pricing is above that of many creator tools. For emotional, freely staged clips, an engine like Runway is the better choice.

Pricing and plans

Synthesia follows a freemium model: the free tier allows a few minutes of video per month with a watermark. Paid plans start, according to the provider, at around $29 per month, remove the logo, and increase video minutes, avatar selection, and features; enterprise tiers offer personalised avatars, more seats, and advanced security. Since providers adjust their tiers regularly, it is worth checking the official Synthesia site for the latest terms before subscribing.

Who is Synthesia for?

Synthesia is especially suited to companies, L&D teams, and HR departments who want to produce training, onboarding, and compliance videos at scale and in multiple languages – without filming. It is also ideal for explainer videos and internal communication. If you are after a cheaper avatar alternative, compare HeyGen; for effect- and stock-based marketing videos, InVideo is a better fit, and for talking-head shorts straight from your phone, Captions.