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AI · head to head

HeyGen vs Synthesia

HeyGen logo

HeyGen

AI

AI video generation with realistic avatars

From
Free
Rated
-
Full reviewWebsite
Synthesia logo

Synthesia

Video Production

AI video creation with digital presenters

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: HeyGen avatar movements feel unnatural in longer videos and repetitive with limited emotional expression, appearing stiff and robotic after 60 seconds; Synthesia free plan limited to 10 minutes of video per month
  • They diverge on capability: HeyGen covers Text-to-video, Synthesia covers 140+ languages.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which HeyGen and Synthesia actually diverge.

Attributes where HeyGen and Synthesia differ
AttributeHeyGenSynthesia
Pricing modelUnknownfreemium
CategoryAIVideo Production
Founded20202017

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in HeyGen

  • Text-to-video
  • Voice cloning
  • Video translation
  • Zapier
  • CRM integrations

Only in Synthesia

  • 140+ languages
  • Video templates
  • Brand customization
  • LMS integrations
  • PowerPoint

Both cover

  • AI avatars
  • API access
  • Web support
  • Api support

What people use each for

The jobs each tool is most often brought in to do.

HeyGen

  • ai tools managementnot Synthesia
  • Workflow automationnot Synthesia
  • Reportingnot Synthesia

Synthesia

  • Training video creation with AI avatarsnot HeyGen
  • Multilingual video localisation with AI dubbingnot HeyGen
  • Enterprise video production and managementnot HeyGen

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

HeyGen

  • Avatar movements feel unnatural in longer videos and repetitive with limited emotional expression, appearing stiff and robotic after 60 seconds
  • Cannot reliably choreograph natural interactions like walking through a room, using devices, or drinking from objects
  • Billing gap between marketed unlimited plans and actual credit consumption is highest complaint with lost credits on failed renders
  • Inconsistent lip sync and voice quality with slow processing and occasional moderation blocks without explanation
  • Customer support described as non-existent with no way to complain or reach a human representative

Synthesia

  • Free plan limited to 10 minutes of video per month
  • Starter plan limited to 10 minutes of video per month
  • Creator plan capped at 30 minutes of video per month
  • SSO/SAML authentication restricted to Enterprise tier

Pricing, plan by plan

HeyGen

Free
  • FreeFree
    • 3 videos
    • With watermark
  • Creator$29/month
    • Unlimited videos
    • 200 monthly credits
  • Pro$99/month
    • 2,000 credits
    • Advanced features

Synthesia

Free
  • BasicFree
    • 1,200 credits per month
    • Up to 10 minutes of video per month
    • 9 AI avatars
  • Starter$29/month
    • 14,500 credits per year
    • Up to 120 minutes of video per year
    • 125+ AI avatars
  • Creator$89/month
    • 44,000 credits per year
    • Up to 360 minutes of video per year
    • 180+ AI avatars

Which should you pick?

Choose HeyGen if

  • You need text-to-video.
  • You want to start without paying.
  • You also want voice cloning.
HeyGen review

Choose Synthesia if

  • You need 140+ languages.
  • You want to start without paying.
  • You also want video templates.
Synthesia review

Questions people ask

Is HeyGen or Synthesia better?
Neither clearly leads. HeyGen starts at Free and Synthesia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HeyGen or Synthesia?
HeyGen starts at Free and Synthesia at Free.
Does HeyGen or Synthesia run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use HeyGen for free?
Both have a free tier, so you can try either at no cost before committing.
What is HeyGen best used for?
HeyGen is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Synthesia is typically brought in for.
What can HeyGen do that Synthesia cannot?
HeyGen covers Text-to-video, Voice cloning, Video translation, Zapier. Synthesia covers 140+ languages, Video templates, Brand customization, LMS integrations. Both handle AI avatars, API access, Web support, Api support.

Answered from the vendors’ own pages

HeyGen: What are HeyGen's pricing plans?

HeyGen offers Free ($0, 3 videos/month with watermark), Creator ($29/month, unlimited videos + 200 monthly credits), Pro ($99/month, more credits), Business ($149/month + $20/seat, 4K rendering), and custom Enterprise pricing.

Source
Synthesia: How much does Synthesia cost?

Synthesia offers a free Basic plan with 10 minutes of video per month, Starter at $29 per month with 120 minutes per year, and Creator at $89 per month with 360 minutes per year. Annual billing provides 38% savings. Enterprise plans are available with custom pricing.

Source
HeyGen: How does HeyGen's credit system work?

HeyGen uses a credit-based system where Avatar IV video costs 20 credits per minute, video translation costs 5-10 credits per minute. Creator includes 200 credits/month, Pro includes 2,000 credits/month, and Business shares 1,000 credits across the workspace.

Source
Synthesia: What is included in Synthesia's free plan?

The free Basic plan includes 1,200 credits per month (approximately 10 minutes of video), 9 AI avatars, 3 personal avatars, and access to 160+ languages and voices. No credit card is required.

Source
HeyGen: What is Digital Twin and how much does it cost?

Digital Twin creates a custom avatar from 2 minutes of recorded footage. Additional avatar slots beyond the default cost $29/month each.

Source
HeyGen: How many languages can HeyGen translate videos into?

HeyGen can translate videos into 175+ languages with AI lip sync, making it useful for global content distribution and localization.

Source
HeyGen: What do users say about HeyGen's ratings?

HeyGen has 4.8/5 on G2 across more than 1,000 reviews and 4.7/5 on Capterra across 313 verified reviews as of June 2026, with avatar quality scoring 9.2/10.

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