HeyGen

HeyGen is an AI video generation platform specializing in digital human avatars and video localization — the two most commercially valuable applications of AI video for businesses. With 300+ realistic AI avatars available and the ability to clone your own voice and likeness in minutes, it has become the primary tool for companies producing multilingual training videos, marketing content, and personalized video outreach at scale.

The video translation feature is HeyGen's most widely used product: upload any video in any language and HeyGen produces a translated version where the speaker's mouth movements are adjusted to match the new language's lip patterns — preserving the original speaker's appearance and voice tone while making them appear to speak naturally in 40+ languages. This makes it economically viable to localize corporate training videos, product demos, and marketing content into dozens of languages without re-filming or hiring voice actors in each language.

The Avatar feature lets businesses create a custom digital human from a short video recording (2+ minutes of someone speaking to camera), which can then be used to generate unlimited video content by typing a script. Pricing starts at $29/month with a free tier that adds a watermark. For e-learning companies, international marketing teams, and sales organizations sending personalized video prospecting messages at scale, HeyGen provides capabilities that would be economically unfeasible with traditional video production.