HeyGen vs Synthesia
HeyGen (Fast, credit-based AI avatar video creation for marketing, sales, and L&D at scale) and Synthesia (Enterprise AI avatar video for corporate training, communications, and localization) are AI avatar video platforms. Below: the bottom line, verified head-to-head facts, and real production costs.
HeyGen leads five of six use cases, with sales outreach the only tie. On budget, HeyGen's paid entry tier includes 600 credits/mo at 3 credits per finished video minute, about 200 minutes/mo made clear upfront, while Synthesia does not publish a credits to minutes rate, leaving its plan harder to size. For developers, HeyGen prices its API at $1 per finished minute, a published unit rate that Synthesia does not offer since its API access is bundled into paid plans instead. HeyGen also ships 1,100+ stock avatars, more than Synthesia's top tier of 240+, and offers 75+ video templates, more than Synthesia's 60+. Sales outreach ties because both support CSV personalization and building an avatar from footage.
Reviewed by vsref Editorialfacts verified Aug 24, 2026Methodology →
HeyGen is our pick for most teams. Start there, or weigh the use-case verdicts below.
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HeyGen vs Synthesia: head-to-head facts
Every row independently verified| Fact | HeyGen | Synthesia |
|---|---|---|
| Pricing unit | creditsAug 24 | credits (with a parallel published minutes/year cap per p...Aug 24 |
| Cheapest paid plan (monthly) | $29Aug 24 | $29Aug 24 |
| Credits/minutes included at entry plan | 600 credits/moAug 24 | 14,500 credits/yearAug 24 |
| Credits per finished video minute | 3 credits/min (Avatar III, standard avatars)Aug 24 | n/a |
| What the free plan caps | 3 videos/mo, max 1 minute eachAug 24 | 1,200 credits/moAug 24 |
| Custom avatar from footage | ✓ YesAug 24 | ✓ YesAug 24 |
| Instant avatar from a photo | ✓ YesAug 24 | ✓ YesAug 24 |
| Lip-sync languages supported | 177+Aug 24 | 160+Aug 24 |
| Public API | ✓ YesAug 24 | ✓ YesAug 24 |
| Interactive / conversational avatars | ✓ YesAug 24 | ✓ YesAug 24 |
| Batch / CSV personalization | ✓ YesAug 24 | ✓ YesAug 24 |
| Commercial usage rights | Paid plans (Creator/Pro/Business): unrestricted commercia...Aug 24 | "Customer will own all Customer Data"Aug 24 |
HeyGen vs Synthesia: verdicts by use case
HeyGen's Creator plan is $29/mo, and Synthesia's Starter plan is also $29/mo, so entry pricing ties. HeyGen's free plan caps out at 3 videos/mo, each capped at 1 minute, and its paid entry tier includes 600 credits/mo at 3 credits per finished video minute, working out to about 200 minutes/mo made clear upfront. Synthesia's free plan caps at 1,200 credits/mo, and its paid entry tier includes 14,500 credits/year, but Synthesia does not publish a credits to minutes rate, so a budget buyer cannot tell how much video that actually buys. Both free plans watermark output. With monthly price tied, the clearer, quantifiable allowance tips this toward HeyGen.
HeyGen and Synthesia both support interactive, conversational avatars, and both publish a public API, so teams building a live talking avatar can integrate either. Both also include voice cloning, and both offer ElevenLabs for bring your own text to speech, with Synthesia pairing that with a native in-product voice library. The difference is in avatar rendering: HeyGen offers Avatar III for standard use plus Avatar IV and Avatar V for photorealistic output, while Synthesia's conversational rendering relies on its single Express stock avatar model. For a product where the avatar is on screen answering back in real time, that extra tier of rendering quality is the deciding factor.
HeyGen and Synthesia both publish a public API, so either can be embedded into another product. The real difference is pricing: HeyGen charges $1 per finished minute of standard avatar video through the API, giving a clear per-unit cost a team can build into its own pricing. Synthesia includes API usage on the Creator plan and above without a separate metered rate, so the marginal cost per generation is not published. HeyGen also states unrestricted commercial usage rights on its paid plans, while Synthesia's terms describe customer ownership of output more generally. For a team that needs predictable unit economics to resell avatar video, HeyGen's published rate is what matters most.
HeyGen's Creator plan is $29/mo, and Synthesia's Starter plan is also $29/mo, so entry pricing ties for marketers testing many ad variants. Both tools support batch or CSV based personalization, so generating dozens of variants from one script is possible on either platform. The gap opens on avatar selection: HeyGen ships 1,100+ stock avatars, while Synthesia offers 125+ on Starter, rising to 180+ on Creator and 240+ on Enterprise, still far short of HeyGen's library. Both free plans watermark their output, so neither gives a clean free export for testing hooks before paying. With pricing tied and watermarking tied, the far larger avatar library for varying creative at scale makes HeyGen the stronger fit.
HeyGen and Synthesia both support batch and CSV personalization, so one script with hundreds of prospect names and companies can be generated automatically on either platform. Both also build a custom avatar from your own footage, so a rep can appear as themselves, and both publish a public API for automation. Entry pricing ties too: HeyGen's Creator plan is $29/mo and Synthesia's Starter plan is $29/mo. The lone difference is length limits: HeyGen allows up to 30 minutes per video on Creator and Pro, while Synthesia caps each scene at 5 minutes across up to 150 scenes, a different structure rather than a clean comparison. On what matters most for personalized outreach, the two are evenly matched.
HeyGen and Synthesia both offer SCORM or LMS export, so finished courses load into a learning platform from either tool, and both handle video translation and dubbing for multilingual rollouts. HeyGen ships 75+ video templates, while Synthesia ships 60+, a smaller library for turning many course scripts into finished lessons quickly. HeyGen states unrestricted commercial usage rights on its Creator, Pro, and Business plans, a clear answer for internal training content, while Synthesia's terms instead frame it as the customer owning output. Synthesia's annual plan runs $18/mo, and HeyGen's annual plan runs $24/mo, more than Synthesia's rate. That price gap is smaller than the combined edge in export, translation, templates, and rights.
HeyGen vs Synthesia: common questions
Is HeyGen cheaper than Synthesia?+−
On monthly plans, HeyGen's Creator plan is $29/mo and Synthesia's Starter plan is also $29/mo, so neither is cheaper there. Paid annually, Synthesia's plan runs $18/mo, while HeyGen's annual plan runs $24/mo, making Synthesia the cheaper option for a yearly commitment.
HeyGen vs Synthesia: which is better for budget?+−
HeyGen is the better fit for a tight budget. Both tools charge $29/mo for their cheapest paid plan, so entry pricing ties, but HeyGen's paid tier includes 600 credits/mo at 3 credits per finished video minute, about 200 minutes/mo made clear upfront. Synthesia's paid tier includes 14,500 credits/year, but Synthesia does not publish a rate to convert those credits into minutes, so that allotment is harder to size. Both free plans watermark their output.
Does HeyGen or Synthesia have a public API for developers?+−
Both HeyGen and Synthesia publish a public API. HeyGen prices API usage at $1 per finished minute of standard avatar video, while Synthesia includes API access on its Creator plan and above without a separate metered rate.
Is HeyGen or Synthesia better for building interactive, conversational avatars?+−
Both tools support interactive, conversational avatars that can hold a live conversation rather than just play a scripted clip. HeyGen also offers ElevenLabs for bring your own text to speech, and Synthesia pairs ElevenLabs with a native in-product voice library.
Does HeyGen or Synthesia support SCORM export for LMS uploads?+−
Yes, both HeyGen and Synthesia support SCORM or LMS export, so a finished course video can be uploaded directly into a learning management system from either tool.
Is HeyGen a good alternative to Synthesia for building a custom avatar from footage?+−
Yes. HeyGen lets you build a custom avatar from your own footage, and so does Synthesia, so either can serve as an alternative for creating a personalized avatar rather than using a stock face.
Do HeyGen and Synthesia both support batch or CSV based video personalization?+−
Yes, both HeyGen and Synthesia support batch or CSV personalization, letting you generate many personalized videos from one script and a list of names or companies.
Does HeyGen offer voice cloning?+−
Yes, HeyGen includes voice cloning as part of its avatar video toolset.
How many languages does Synthesia support for lip-sync?+−
Synthesia supports lip-sync in 160+ languages.
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