HeyGen makes videos where someone appears to speak your script. You pick an avatar and a voice, paste or import text, and get a finished clip. Its real strength is multilingual: record once, then produce the same message in well over a hundred languages with matched lip movements, which is why training and marketing teams reach for it.
Where it pays off
Think of the work that normally needs a camera, a quiet room, and several takes: onboarding modules, product explainers, sales outreach, policy updates that change every quarter. Rewriting the text is cheaper than reshooting, so a single template can carry a lot of updates. The translation feature also lets a small team localise an existing recording without booking voice actors in each market. A course that used to be re-shot once a year can instead be updated sentence by sentence, and a sales team can send the same demo in a prospect's own language without booking studio time. That repetition is where the savings really add up.
What to expect from the avatars
Stock avatars are quick to use; a custom avatar that looks and moves like you takes a short reference recording and, importantly, a verification step confirming the person consented. That check is a feature, not a nuisance — it is there to stop someone cloning a face without permission. Results are convincing at a glance, though close inspection can still reveal small tells, so keep avatars for internal and marketing content rather than anything meant to look like a live event.
Limits worth knowing
Shorter free and entry plans restrict video length and resolution, and heavier features draw on credits. Auto-translation is good but not flawless, especially with jargon and humour, so have a speaker review anything customer-facing. As with all synthetic media, say clearly that the presenter is AI where that could be mistaken. Keep the raw script too, so a future editor can fix a subtitle without regenerating the whole video.
Need to edit a recording you already have? Descript works by transcript. For generated scenes rather than a talking head, see Runway and Pika. Our tool guide covers how to compare them.
