Start AI video generation with one short scene: what moves, and how should the camera behave? Compare text-to-video generation separately from support for animating an existing picture.
HeyGen is an AI video tool that creates presenter or explainer videos from scripts using avatars, voiceovers and visuals.
AI Video Generation
Good to know: Check AI answers against their sources. Review account permissions and data settings before sharing private files or connections.
Test the same scene and target aspect ratio. Watch whether objects keep their shape across frames, motion follows your request and the clip connects to the next scene. Do not judge only the opening frame.
Duration, resolution, queue time and credit use can depend on the model and plan. Check sound, speech and captions as separate capabilities; a generated silent clip does not establish any of them.
Can I make a long video in one request? Check the product's duration limits. When joining short clips in an editor, allow time to match characters, lighting and transitions.
Can I use my own photo? Image-to-video input may differ from text-to-video generation. Test supported image sizes and how the picture is preserved; upload only images you have permission to share.
This comparison is based on published official documentation. It is not a hands-on test or a quality ranking. Unknown features are not treated as verified.
| App name | HeyGenWebsite |
|---|---|
| Free output | — |
| No account needed | — |
| No watermark | — |
| Works offline | — |
| Batch processing | — |
| Content language | — |
| Good to know / Sources and review date | Check AI answers against their sources. Review account permissions and data settings before sharing private files or connections. Check the official page for current quotas and output conditions. Sources and review date |