COMPARISON · VERIFIED APRIL 2026
HeyGen vs Synthesia
Fact-checked comparison with verified pricing.
🏆 Quick Verdict
HeyGen
Both offer free tiers
⭐ Strongest At
Every tool has one thing it does better than its competitors. Here is each one's honest edge:
AI avatar videos with realistic lip-sync and translation.
AI avatar videos for corporate training and marketing.
📊 Quick Specs
What is HeyGen?
HeyGen is an AI video platform specializing in realistic avatar-based video creation with industry-leading lip-sync technology. Founded in 2020, it allows users to create videos with AI avatars that speak in 40+ languages with natural mouth movements. HeyGen's Video Translate feature can take an existing video and re-render it in another language while preserving the speaker's voice and lip movements. Its key differentiator is realism: HeyGen's avatars and lip-sync quality are considered the most natural in the market, making it the go-to for marketing and social media content.
What is Synthesia?
Synthesia is a London-based AI video platform focused on enterprise training and corporate communications. Founded in 2017, it was one of the first AI avatar video tools and has built deep relationships with Fortune 500 companies. Synthesia offers 240+ AI avatars, 140+ languages, SOC 2 compliance, and GDPR readiness. Its key differentiator is enterprise trust: Synthesia's security certifications, template library for training videos, and LMS integrations make it the standard for corporate L&D teams producing internal training content at scale.
Key differences at a glance
These are the core differences that matter most when choosing between HeyGen and Synthesia:
- -- HeyGen has more realistic lip-sync and avatar quality; Synthesia has more avatar variety (240+)
- -- Synthesia has SOC 2 and GDPR compliance; HeyGen is catching up on enterprise security
- -- HeyGen has Video Translate for dubbing existing videos; Synthesia focuses on script-to-video
- -- Synthesia Starter starts at $22/mo; HeyGen Creator starts at $29/mo
- -- Synthesia is stronger for corporate training; HeyGen is stronger for marketing content
Feature-by-feature comparison
Here is how HeyGen and Synthesia compare on specific capabilities that affect daily use:
Pricing comparison
HeyGen offers: Free (1 video, 1 minute, watermarked), Creator at $29/mo (5 min/mo video credits, no watermark), Business at $89/mo (premium avatars, priority rendering), and Enterprise (custom pricing, dedicated support). Synthesia offers: Free (demo video, limited features), Starter at $22/mo (120 min/yr, basic avatars, watermark), Creator at $67/mo (360 min/yr, no watermark, custom avatars), and Enterprise (custom pricing, SSO, LMS). Synthesia is cheaper at the entry level ($22/mo vs $29/mo). However, HeyGen's Creator plan is more generous on a per-video basis. For enterprise training at scale, Synthesia's SCORM export and LMS integration justify its Enterprise pricing. For marketing teams creating short-form content, HeyGen's superior lip-sync makes it worth the premium.
Pros & Cons
HeyGen
- Most realistic AI avatars
- Lip-sync in 40+ languages
- Instant video translation
- Custom avatar creation
- Free tier extremely limited (1 video)
- Premium avatars require Business plan
- Video length limits on lower plans
- Uncanny valley still visible on some avatars
Synthesia
- 240+ AI avatars in 140+ languages
- Enterprise-grade security (SOC 2, GDPR)
- Template library for training videos
- Script-to-video in minutes
- Expensive for individual creators
- Avatar selection less natural than HeyGen
- Limited creative control vs real video
- Starter plan has watermark
Bottom Line
HeyGen (4.4/5) is best for Creating AI avatar videos for marketing, training, and presentations. Synthesia (4.3/5) is best for Enterprise training and corporate video production with AI avatars.
Which one should you actually choose?
your daily work is mostly about AI avatar videos with realistic lip-sync and translation. That is the one thing it does better than Synthesia.
your daily work is mostly about AI avatar videos for corporate training and marketing. Synthesia owns this corner of the market.
HeyGen and Synthesia both have legitimate use cases. Start with whichever has a free tier, run your real work through it for a week, then decide based on workflow fit — not feature tables.
Frequently asked questions
HeyGen vs Synthesia — which one should I pick?
It depends on the job. HeyGen is strongest at AI avatar videos with realistic lip-sync and translation. Synthesia is strongest at AI avatar videos for corporate training and marketing. Pick HeyGen if its strength matches your daily work, and Synthesia if the second description matches better. There is no objectively 'better' answer — only the better fit for the specific work you do most often.
Is HeyGen or Synthesia cheaper?
HeyGen pricing: Free · Creator $29/mo · Business $72/mo. Synthesia pricing: Starter $22/mo · Creator $64/mo · Enterp. Pricing alone is rarely the right reason to choose between them — the wrong tool at half the price still wastes your time.
Does HeyGen or Synthesia have a free plan?
Free-tier availability changes frequently for both HeyGen and Synthesia. Check the official site before signing up — never trust a third-party page (including this one) to be perfectly up to date on plans.
Can I use HeyGen and Synthesia together?
Yes — there is no technical or licensing reason you cannot use HeyGen and Synthesia side by side. Many people do exactly this: HeyGen for AI avatar videos, Synthesia for AI avatar videos for corporate training and marketing. The only cost is paying for two subscriptions if you upgrade both.
What does HeyGen do that Synthesia cannot?
HeyGen's honest edge over Synthesia is AI avatar videos with realistic lip-sync and translation. Synthesia cannot match this directly — though it has its own edge (AI avatar videos for corporate training and marketing). If your daily work depends on what HeyGen is uniquely good at, that is the deciding factor. Otherwise feature parity will probably feel close enough.