HeyGen vs Synthesia: what each does better and how to choose

Updated August 25, 2026 to reflect current pricing, credit usage, dubbing, and SCORM availability.

HeyGen vs Synthesia is the comparison most people start with when evaluating AI avatar video platforms. Both turn a script into a video of a digital person speaking it. Both support multiple languages. Both offer custom avatar creation from recorded footage. HeyGen’s paid plans start at $29/month; Synthesia’s start at $19/month, billed monthly.

The difference is in what each platform was built for. Synthesia optimized for enterprise L&D teams producing training content at scale, with compliance tooling and SCORM export baked in. HeyGen built for a wider market, with a larger template library, stronger video translation features, and a separate real-time product for conversational use cases.

This comparison covers what each platform does well, where each falls short, how pricing actually works, and when you should pick one over the other.

What does HeyGen do well?

HeyGen started as a video translation and avatar creation tool and has expanded into one of the broadest AI video platforms on the market.

Video translation. HeyGen can dub existing footage with lip sync, and its paid plans list 175+ languages and dialects. Synthesia now offers the same core workflow for uploaded files and YouTube links, with voice preservation and lip sync in 140+ languages. HeyGen still has a broader published language range, but the feature is no longer exclusive.

Templates and creative tools. HeyGen has more pre-built video templates than most avatar platforms. For marketing teams producing social clips, product videos, or ads on a tight cycle, the template library cuts production time. The editor supports scene-level control over backgrounds, text overlays, and transitions.

Broader integration surface. HeyGen connects with Zapier, HubSpot, and various video hosting platforms. For teams that need avatar video plugged into an existing marketing or content stack, the number of native integrations is wider than what Synthesia offers.

Interactive Avatar product. HeyGen has a separate real-time product (Interactive Avatar, at liveavatar.com) that supports live conversational avatar experiences. This gives HeyGen a foot in both the pre-rendered and real-time categories, though the real-time product is architecturally separate from the video creation studio.

Where HeyGen is weaker: Credit usage varies sharply by model, so costs need a little math. Avatar III costs 4 credits per minute for Video Looks or 7 for Photo Looks; Avatar IV costs 31 or 16 respectively, and Avatar V costs 48. Governance features sit on Business ($149/month) and Enterprise at custom pricing. Business also includes SCORM export and LMS integrations, so the old no-SCORM claim is out of date.

What does Synthesia do well?

Synthesia is the longest-established name in AI avatar video and the default choice for large enterprise L&D teams.

Enterprise compliance and governance. Synthesia puts SCORM export, SAML SSO, audit trails, workspace permissions, and its broader governance controls on Enterprise at custom pricing. If your training team needs to publish avatar content to an LMS such as Cornerstone, Workday, or Docebo, that is the tier to evaluate.

Training-focused editor. Synthesia’s Pro tier ($89/month) includes interactive video and branching. Quizzes and SCORM export require Enterprise at custom pricing. HeyGen offers comparable interactive tools on Business ($149/month).

Generous free tier. Synthesia’s free plan gives 10 minutes of video per month with 9 avatars and a functional editor. Videos carry a Synthesia watermark, but the time allowance is far more generous than HeyGen’s 3 watermarked videos. For evaluation purposes, Synthesia lets you test more thoroughly before committing money.

Language breadth. Synthesia lists 160+ creation languages and dubbing in 140+ languages. HeyGen lists 175+ languages and dialects on paid plans. Both have broad localization coverage; HeyGen has the larger published paid-plan range.

Avatar library at lower tiers. At the Starter tier ($19/month), Synthesia gives access to 125+ avatars. HeyGen offers 700+ stock avatars on paid plans, but many of the higher-quality options require more credits per minute, so the effective selection depends on your budget per video.

Where Synthesia is weaker: Fewer marketing templates and less emphasis on social-video workflows. Video API access is included on Pro at $89/month. Synthesia also offers Interactive Avatars separately from its studio; access requires an enabled API key. AI dubbing remains a strength, with uploaded-file and YouTube workflows, voice preservation, and lip sync in 140+ languages.

How do HeyGen vs Synthesia features compare side by side?

For deeper dives on each platform individually, see the HeyGen API and feature review and the broader AI avatar generators comparison. There’s also a separate Tavus vs Synthesia comparison if you’re evaluating across more platforms.

How does pricing actually compare?

Both platforms use shared credits, but the units are not interchangeable. HeyGen charges 4 credits per minute for Avatar III Video Looks, 7 for Avatar III Photo Looks, 31 for Avatar IV Video Looks, 16 for Avatar IV Photo Looks, and 48 for Avatar V. Synthesia Starter ($19/month) includes 1,250 shared credits (up to ~12 additional video minutes), while Pro ($89/month) includes 6,000 shared credits (up to ~60 additional video minutes). The video estimates are on top of the free allowance of 10 video or dubbing minutes and 500 credits. Other AI features draw from the shared credit pool.

The HeyGen credit math to watch. Avatar III costs 4 credits per minute for Video Looks or 7 for Photo Looks; Avatar IV costs 31 or 16 respectively, and Avatar V costs 48. Creator ($29/month) includes 600 credits, enough for 150 minutes of Avatar III Video Looks or 12.5 minutes of Avatar V. Lip-synced translation costs 6 credits per minute in Speed mode or 10 in Precision mode. Check the model and workflow before turning a credit balance into a minute estimate.

Synthesia’s tier jump. Starter costs $19/month for 1,250 shared credits; Pro costs $89/month for 6,000. Their approximate extra video allowances are 12 and 60 minutes, respectively. Colossyan Professional is also $89/month, or $59/month with annual billing, with separate allowances of 30 NEO and 10 NEO2 minutes.

Comparing the entry plans, Synthesia Starter adds up to ~12 video minutes from its paid credit pool to the free allowance. HeyGen Creator provides 600 credits, which can cover 150 Avatar III Video Look minutes or 12.5 Avatar V minutes. Compare the model and other features consuming credits before calculating cost per minute.

Annual billing. Both platforms offer discounts for annual commitment, typically 20-40% off monthly pricing. If you’re committing to either platform, annual billing changes the per-minute economics significantly. But don’t lock in annually until you’ve produced at least a month of content and confirmed the platform fits your workflow.

When should you pick HeyGen? When should you pick Synthesia?

Pick HeyGen if:

• You prefer HeyGen’s 175-language localization workflow and flexible translation credits.

• You’re producing marketing, social, or creative content where templates and visual flexibility matter.

• You want the option to explore real-time interactive avatars alongside pre-rendered video from the same vendor.

• You have variable usage patterns that benefit from a credit system over fixed minutes.

Pick Synthesia if:

• Your primary use case is corporate training and you need SCORM export, LMS integration, and compliance tooling.

• You’re in a regulated industry that requires SSO, audit trails, and enterprise governance.

• Language breadth matters and you need 160+ languages, including less common pairs.

• You want the most generous free evaluation experience (10 min, functional editor, more avatars than HeyGen’s free tier).

For two-way conversation, compare HeyGen’s and Synthesia’s separate conversational products with other real-time providers. Their standard studio workflows produce scripted video files. The split between content avatars and conversation avatars is the most important distinction in this market, and it determines which platforms are even in your consideration set.

If you need both scripted video and conversation, evaluate the studio and conversational products separately. They have different APIs, allowances, and integration requirements even when they come from the same vendor.

What if you need real-time conversation instead of scripted video?

HeyGen and Synthesia both offer scripted-video studios and separate real-time avatar products. If you need a live AI agent, compare the conversational integrations rather than studio rendering features.

Real-time interactive avatars generate every frame live during a conversation. The user speaks, the avatar listens, a language model processes the input, and the avatar responds with synchronized face, voice, and expressions in real time. No script. No rendered file. This is what customer support, onboarding, sales qualification, and training simulation use cases need.

HeyGen’s LiveAvatar and Synthesia Interactive Avatars are separate from their video studios. Synthesia Interactive Avatars uses LiveKit and requires an API key enabled for Interactive Avatar access; you provide the LLM and speech-to-text. Anam also provides real-time interactive avatar conversation. Anam’s Cara-4 averages ~150 ms for server-side avatar generation in a running session; full conversational latency depends on the voice stack and network. Tavus is another option with developer tooling.

An independent 178-participant blind study at Mabyduck study report compared avatar platforms on realism, responsiveness, and interruptibility across real-time conversation. If you’re evaluating the conversational category, that benchmark is a useful starting point.

For direct comparisons against Anam specifically, see Anam vs HeyGen and Anam vs Synthesia.

Frequently asked questions

Which is better for beginners, HeyGen or Synthesia?

Synthesia’s free tier is more generous (10 min, though watermarked) and the editor has a gentler learning curve for straightforward training content. HeyGen’s free tier is more limited but the template library makes it faster to produce polished marketing content. Try both free tiers before committing.

How many languages do HeyGen and Synthesia support?

Synthesia lists 160+ creation languages and AI dubbing in 140+ languages. HeyGen lists 175+ languages and dialects on paid plans, plus audio dubbing and full lip-synced translation. Both now localize existing footage.

Can I create a custom avatar of myself on both platforms?

Yes. Both platforms support custom avatar creation from 2-5 minutes of recorded video. Quality depends on source footage lighting, framing, and audio clarity. Both also offer large libraries of stock avatars if you don’t need a custom likeness. Check each platform’s recording guidelines before shooting, as the requirements differ slightly.

Does HeyGen or Synthesia offer SCORM export?

Both do. Synthesia supports SCORM export on Enterprise at custom pricing. HeyGen includes SCORM export and LMS integrations on Business at $149/month. HeyGen no longer lacks native SCORM.

Which platform is better for marketing content?

HeyGen. Its template library and creative editing tools fit marketing workflows, and paid plans cover 175+ languages and dialects. Synthesia now has capable AI dubbing too, so the decision is more about templates, collaboration, and governance than a missing localization feature.

Is there a real-time conversational avatar option?

Yes. HeyGen offers LiveAvatar, and Synthesia Interactive Avatars uses LiveKit and requires an API key enabled for Interactive Avatar access; you provide the LLM and speech-to-text. For other real-time interactive avatars, Anam and Tavus are designed specifically for conversational use cases.