HeyGen starts from the same pitch as most AI avatar tools — turn a script into a presenter-led video without a camera — but it leans hardest into one specific problem: taking video you already have and putting it in front of an audience that doesn't speak the language it was made in. Translation and dubbing aren't a feature bolted onto an avatar generator here; they're close to the whole point, and it shows in what's actually good about the tool.
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What it actually does
Feed HeyGen a script and it builds a video around an AI avatar — stock or your own cloned likeness — reading it back with reasonably natural pacing and lip-sync. That part is table stakes at this point. Where it separates itself is the dubbing pipeline: it can take an existing video, translate the spoken audio into one of 175+ languages and dialects, and adjust the avatar's mouth movements to roughly match the new audio, instead of just slapping subtitles on top. For a company that already has a product video, training module, or onboarding series and needs it to work in ten markets instead of one, that's a materially different job than generating something from scratch each time.
Voice cloning is available on every tier, including the free one, which is a lower bar to entry than most competitors set. Stock avatars (700+ on paid plans), 1,000+ AI voices, and standard editing tools round out the rest, alongside team workspace, SSO, and SCORM export on the higher plans for anyone exporting into a corporate LMS.
Pricing, in plain terms
HeyGen runs on a credit system with a free tier to start:
- Free — 3 videos a month, capped at 1 minute each, 1 custom avatar, 30+ languages. Enough to see how the lip-sync holds up, not enough to actually publish a campaign.
- Creator (~$29/mo, ~$24/mo billed annually) — 600 credits, videos up to 30 minutes, 175+ languages unlocked, 1080p export.
- Pro (~$49/mo) — 1,000 credits, same 30-minute cap, 4K export, and faster translation processing — with higher add-on credit tiers available if you need more volume.
- Business (~$149/mo) — 1,500 credits, videos up to 60 minutes, 5+ custom avatars, team workspace features, extra seats at $20/seat/month.
- Enterprise — custom, no maximum video length, SSO and SCORM export for LMS integration.
Credits are the thing to watch: longer videos and higher-fidelity dubbing consume more of them, so the sticker price on a plan undersells what heavy, frequent use actually costs. Check HeyGen's current pricing page before committing — credit costs shift as the model lineup changes.
Where it's genuinely good
The dubbing is the real differentiator, not a marketing line — turning one piece of video into a dozen language versions with lip-synced (not just subtitled) audio is a capability that would have required a localization vendor and real budget two years ago. Voice cloning being available even on the free tier is also a genuinely generous way to let someone evaluate the core technology before paying anything.
Where it falls short
The credit system makes the advertised monthly price a soft number rather than a hard ceiling — a team doing high-volume or longer-form video will burn through an allowance faster than the plan name suggests, and figuring out real monthly cost takes some trial and error. The video-length cap persists even on the Pro tier (still 30 minutes), so a business doing long-form training content needs to jump to Business or Enterprise just to remove that ceiling.
Who should use it (and who shouldn't)
HeyGen earns its subscription for a team that already has video and needs it working across multiple languages and markets — training content, product explainers, onboarding — without re-shooting anything. If you just want one evergreen explainer video in one language, Synthesia's simpler credit model and slightly larger avatar library may suit a single-language use case just as well for less complexity.
FAQ
What's the difference between HeyGen and Synthesia?
Both generate AI-avatar video from a script, but HeyGen's standout is dubbing and translation — it adjusts lip-sync to match translated audio across 175+ languages, which makes it the stronger pick for localizing existing video into multiple markets rather than just producing new video in one language.
Can HeyGen dub my own real video, not just an avatar?
Yes. HeyGen's translation and dubbing pipeline works on existing video, not only avatar-generated video, adjusting mouth movements to roughly match the newly translated audio track.
Does HeyGen offer a free plan?
Yes — the free tier includes 3 videos a month capped at 1 minute each, 1 custom avatar, and access to 30+ languages, enough to test the quality before upgrading.
Try HeyGen free → ◆ Affiliate link — see our disclosure.