★★★★★4.7 / 5 on G2
Rask AIvsSynthesiaSynthesia

Rask AI vs Synthesia for translating existing videos

Already have courses, webinars or product demos? Use Rask to translate your footage, review the script and prepare localized versions. Compare video translation workflows below.

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Watch the example
Choose Rask AI if
  • You localize footage you already have: courses, webinars, demos with text on screen.
  • You need terminology control on every plan: dictionary, project instructions and segment editing, with re-renders included.
  • You localize a library: batch upload, teamspaces, API with an SLA.
Choose Synthesia if
  • Your workflow starts with creating avatar-led videos from a script.
  • Your L&D team already lives in Synthesia and translation is an occasional add-on.
The rows that usually decideRask AISynthesia
On-screen text inside the frameBusiness and upNot listed
Screen recording with translationAI Screen Recorder, betaNot listed
Translation dictionary and promptingYesCustom Glossary, Enterprise
Review by your teamIn the projectNot listed
Avatar videos from a scriptNoCore product
Vendor-claimed figures from public pages. The full table with sources is below.
Used by global teams
Feature comparison

Compare the workflows that matter

Compared product: Synthesia AI Video Translator.

Translation review · Video output · Team workflow · Pricing. Capabilities both tools share are collected at the end. Hover the ? next to a feature for what it means.

FeatureRask AISynthesia
What you can translate
On-screen text inside the frameSlides, captions and charts baked into the video
Business and upNot listed
Screen recordings, recorded in the same toolRecord a demo and translate it without export
AI Screen Recorder, betaNot confirmed in this comparison
Avatar videos from a scriptA presenter generated from text
NoCore product
Translation review
Project instructions for the translation modelTone, audience and wording rules per project
YesNot listed
Review by your teamReviewer roles and approval of translated text in the project
Reviewer roles, Business and upNot confirmed in this comparison
Professional translation reviewReview by a specialist, arranged separately
On request: discuss review services with our teamNot listed
Team workflow
Text-to-speech and speech-to-text APIVoice and transcription endpoints
YesNot confirmed in this comparison
SLAUptime and support commitments
EnterpriseNot listed
C2PA / content authenticityProvenance for AI-generated media
MemberNot listed
PricingSynthesia web plans use credits per generation, and lip-sync doubles the credit cost; Starter includes roughly 16 dubbing minutes a month. Rask plans include localization minutes with edits and re-renders included. API pricing and web subscriptions are different buying options: compare the same workflow, output languages and lip-sync requirements. Get an estimate for your project
Billed perWhat one unit of price buys you
Localization minutes of output; edits and re-renders includedCredits per generation; lip-sync 2×
Starting subscriptionEntry plan and what its allowance measures
$39/month, including 25 localization minutes$29/month, ~16 dubbing minutes in credits
Extra usage on web plansWhat more minutes cost on the same plan
$3 per extra minuteNot confirmed in this comparison
API pricingA separate buying option from web plans
Through our team$0.40 voice-only, $0.80 with lip-sync, per min
Max length per videoLongest single upload on self-serve plans
Not confirmed in this comparisonNot confirmed in this comparison
Free trialWhat you can test before paying
3 min, no card10 min/mo, watermark
Shared capabilities (16) Show
Speech in real-speaker videoFootage you already have: courses, webinars, interviews
YesYes
Audio onlyPodcasts, voiceover tracks
YesYes
Review and edit localized textWhat you can change before rendering
Edit transcripts and translations before renderingYes
Translation dictionary / glossaryProtected terms, brand names
YesCustom Glossary, Enterprise
Lip-sync on real footageMouth movement matched to the new language
YesYes, 2× credits
Multi-speaker detection and per-speaker voicesPanels, interviews, courses
YesAuto-detect, assignment override
Voice cloning languagesWhere the original voice is preserved
32Voice and accent preservation
Subtitles, .srt / .vtt in and outCaptions as a deliverable
YesSRT per language
Teamspaces, folders, voice presetsShared assets across a team
YesLive collaboration, Enterprise
Batch uploadLocalize a library, not a file
Business and upBulk translation, paid plans
Dubbing APITranslate and dub video through the API
Yes, arranged through our teamYes, $0.40–0.80 per min
Lip-sync APILip-sync as an API capability
YesYes, $0.80 per min
SSO / SAML
YesSAML/SSO, SCIM, Enterprise
SOC 2 Type II, GDPR
YesSOC 2, Trust Center
Output languagesVendor-claimed, includes regional variants
135+140+, 70+ self-serve
Several target languages per uploadOne source, many outputs
UnlimitedYes
Last verified: 22 Oct 2026. Sources: vendor pricing and documentation pages. Language counts are vendor-claimed.Legend:RaskAvailablePartial / add-onFound an error? [email protected]
Key differences

Where the two tools actually diverge

Translate the whole frame, not just the voice

Slides, captions and screen demos come out translated too

Rask translates on-screen text inside the video on Business and Enterprise and records product demos with AI Screen Recorder. Synthesia's translator handles the spoken track of uploaded footage; on-screen text translation is not listed on its site.

play button
Create polished videos with AI Screen Recorder
Review terminology and translations in context

Edit a segment, add a term, instruct the model

Edit a translated segment, add your product terms to the dictionary and give the translation model instructions before you render. Synthesia offers a Custom Glossary and speaker assignment override on Enterprise. See the review workflow on a real training clip below.

Translation DictionaryScreenshot: segment editor with source and target text
Built for a localization operation

Teams, batches and an API with the same pipeline

Teamspaces, folders, voice presets, batch upload and the same pipeline through the API with an SLA on Enterprise. Synthesia adds live collaboration, SAML/SSO and SCIM on Enterprise.

Rask APIDiagram: Rask API pipeline
See it in action

See Rask on a real video

Watch the original, switch to a translated version, and review the voice, timing and terminology. Rask output only; run the same kind of clip through Synthesia yourself to compare.

Play video
Intro video translation example
Play video
Education video translation example
Play video
Media video translation example
Play video
Training content video translation example
Play video
Creative content video translation example
Play video
Religious video translation example
Keep your style and personality while your videos speak any language.
Turn courses and lectures into native-language lessons for learners worldwide.
Take your channel global with the same voice, tone and energy.
Roll out the same onboarding and training to every team, in their own language.
Bring shows, interviews and creator content to new audiences without re-recording.
Bring your message to the people worldwide, in the speaker’s own voice.
Intro
Education
Media
Training
Creative content
Religious
Translate video
Rask output only: the same source video, translated by Rask into four languages with voice cloning and lip-sync.
Getting started

Add Rask to your existing video workflow

Start with one video from your library. Upload it to Rask, review the translation and compare the result before moving more content. You can keep your current video creation tools.

Try one existing video
1
Upload one short video

A representative clip or its SRT. Existing subtitles become the source transcript.

2
Review the translation

Check wording and terminology in the segment editor; add your product terms to the dictionary.

3
Compare the result, then decide the scope

Export the localized version, share it with your team and plan the rest of the library, with or without the API.

FAQ

Rask AI vs Synthesia: common questions

Questions come from pre-sales calls. Can't find yours? Contact sales.

Does Synthesia translate uploaded videos, or only avatar videos?

How do Synthesia credits compare to Rask minutes?

Can I use Synthesia for avatars and Rask for localization?

Does Rask work with multi-speaker videos?

Is Rask SOC 2 compliant?

What happens if the translation needs a fix?

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Every tool, by category

See how your video sounds in a new language

Start with a short clip and one target language. Preview the voice and wording with your own content. Three free minutes, no credit card. Team features and on-screen text translation: see them in a demo.
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