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Synthesia

Translate and dub videos with synced lip movement

Synthesia translates spoken video from Spanish to English and other languages with AI dubbing. It preserves the original voice style, adds lip-sync, and can generate subtitles for dubbed videos.

Free Tier
Web
Voice
Vision
B2B
B2C
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About

What It Is

Synthesia’s AI Video Translator is a web-based video dubbing tool focused on translating spoken videos into other languages. The page shown here is specifically for Spanish to English translation, but it also lists many other supported languages and dialects.

It’s aimed at teams and creators who need to localize training, marketing, sales, or internal communication videos without re-recording them. To get started, you upload a video file, paste a YouTube link, or record in-browser, then choose source and target languages before generating the dubbed version.

What to Know

This is useful when you want faster localization with a more natural result than basic subtitles alone. According to Synthesia, it can preserve the original voice, sync lip movements, support multiple speakers, and auto-generate subtitles for the dubbed video.

It is not a fully autonomous agent; it performs a specific media workflow rather than taking open-ended actions across tools. The page does not explain which AI models power the feature, and pricing is not fully public here beyond a free first minute and an upgrade path to remove watermarks. It also has content restrictions: political, inappropriate, and discriminatory uploads are rejected, and you must have the rights to dub the content. If you need a local/offline tool or a general-purpose translator, this is probably not the right fit.

Key Features
Translates spoken videos from Spanish to English
Supports AI dubbing with preserved voice style
Synchs translated audio to lip movements
Accepts video uploads, YouTube links, or in-browser recordings
Supports auto-detect for source language
Use Cases
Localizing training videos for international teams
Translating marketing webinars for a wider audience
Dubing sales or product demo videos into English
Agenticness: Guided Assistant 💬

Executes tasks you assign, one step at a time, within narrow domains.

High evidence
Last evaluated: Mar 31, 2026

Dimension Breakdown

Action Capability
Autonomy
Adaptation
State & Memory
Safety

Categories

Pricing

Pricing not publicly available.

  • Free: First minute of video is completely free; longer videos are trimmed.
  • Pro: Upgrade to remove watermarks and unlock additional dubbing options; exact price not shown on the page.
  • Enterprise: Contact sales; enterprise-style usage is implied by the business focus, but details are not listed here.
Details
AddedMarch 31, 2026
RefreshedMarch 31, 2026
Quick Facts
DeploymentCloud-hosted
AutonomyCopilot (human-in-loop)
Model supportSingle model
Open sourceNo
Team supportSmall team
Pricing modelFreemium
Interfaceweb, api
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