# AI Avatar Video Generator > Kenerate's AI avatar video generator is Avatar Talk: 26 engines, 19 that turn a photo or stock presenter into a talking video and 7 that re-sync the lips of an existing clip. Videos run up to 10 minutes, in 720p or 1080p on Kenerate Avatar or up to 4K with HeyGen Presenters, and it works on the free plan. URL: https://kenerateai.com/ai-avatar-video-generator Publisher: Kenerate AI (https://kenerateai.com) Last updated: 6 October 2026 ## Key facts - Engines: 26 (19 photo, 7 video) - Longest video: 10 min - Top resolution: 4K (HeyGen Presenters) - Two-speaker engines: 5 - Uploads: Image 20 MB · audio 50 MB · video 200 MB - Free plan: Yes - Kenerate Avatar (Kenerate): Image + up to 10 min of speech → 720p or 1080p. Courses, explainers and long presenter videos. - HeyGen Presenters (HeyGen): Up to 10 min of speech + a stock presenter → 720p, 1080p or 4K. Avatar videos with no photo, in 4K. - VEED Fabric 1.0 (VEED): Image + up to 5 min → 480p or 720p. UGC and ad avatars. - OmniHuman 1.5 (ByteDance): Image + up to 60 s → Engine decides. Cinematic, full-body hero clips. - InfiniteTalk Duo (WaveSpeed): Image of two + one track each, up to 10 min → 480p or 720p. Podcasts and interviews. - LTX 2.3 Lipsync (Lightricks): 5–20 s of speech; image optional → 480p, 720p or 1080p. Short 1080p social clips. - VEED Lipsync 2 (VEED): Video + new speech, up to 5 min → As long as the speech. Re-voicing a video you already have. - Sync Lipsync 3 (Sync Labs): Video + speech, up to 5 min → Engine decides. The most accurate video lip sync. ## Steps 1. Write the script and make the voice — Type it in Voice Studio and generate the narration, or record yourself on the mic in Avatar Talk. Split scripts over 10 minutes into parts. 2. Choose the avatar — Upload a portrait or character image, or pick one of 500 HeyGen stock presenters in 16:9 or 9:16. 3. Pick the engine and resolution — Kenerate Avatar for long 1080p presenter videos, VEED Fabric for ad-style clips, OmniHuman 1.5 for cinematic hero shots up to a minute. 4. Generate, then finish — Download the video, then add burned-in captions in Auto Subtitles or dub it into another language and re-sync the lips. ## In depth ### The four parts of an avatar video Every avatar video is a face, a voice, a performance and a frame. Avatar Talk takes care of the performance, the lip sync and movement; you decide the other three. - Face: your portrait, a generated character or a stock presenter. - Voice: a recording, a Voice Studio narration or a dubbed track. - Performance: the engine plus an optional direction prompt. - Frame: 16:9 or 9:16 presenters, or your image's own shape. ### Photo engines vs video engines The 19 photo engines generate the whole performance from a still image, which is why the face, head and body move. The 7 video engines start from footage that already exists and redraw only the mouth, or the face with Sync React-1, keeping the original camera work. Use photo engines to create an avatar video, video engines to re-voice or translate one. ### Choosing resolution 720p is enough for social feeds and most course platforms. Choose 1080p on Kenerate Avatar for full-screen viewing, or HeyGen Presenters in 4K for large screens. Higher resolutions use more of your balance. ## FAQ Q: Is there a free AI avatar video generator? A: Avatar Talk works on Kenerate's free plan with the sign-up credits, so you can generate avatar videos without paying first. How far the credits go depends on the engine, resolution and length; one-time credit packs, which don't expire, top them up. Kenerate's text-to-video models in the video studio need a credit pack. Q: How long can an AI avatar video be? A: Up to 10 minutes per clip with Kenerate Avatar, InfiniteTalk, Kling Avatar 1 Pro, SoulX FlashHead and HeyGen Presenters. For longer courses, split the script into chapters and join the clips in an editor. Q: What resolution do avatar videos come out in? A: It depends on the engine: Kenerate Avatar renders 720p or 1080p, HeyGen Presenters 720p, 1080p or 4K, LTX Lipsync up to 1080p, and InfiniteTalk 480p or 720p. Some engines, such as OmniHuman 1.5, choose the size themselves. Q: Can I turn a script into an avatar video? A: Yes, in two tools. Write the script in Voice Studio and generate the voice, then pick that take from History in Avatar Talk as the audio. The avatar speaks exactly the words in the script. Q: Can I make an avatar video in another language? A: Yes. Generate the voice in the language you need, or dub a finished video with Kenerate's dubbing tool and then run a video lip-sync engine such as VEED Lipsync 2 so the mouth matches the new audio. Q: Can I add captions to an avatar video? A: Yes. Open the finished video in Auto Subtitles, which transcribes the speech and burns timed captions into the picture in one of 10 styles, at 720p or 1080p. Q: How is this different from an AI video generator? A: An AI video generator invents the whole scene from a prompt and its own sound. An avatar video generator starts from a face and your audio, so the words and timing are exactly yours. For B-roll around the presenter, use the video studio's models. ## Related pages - Talking photo AI: https://kenerateai.com/talking-photo-ai - AI lip sync: https://kenerateai.com/ai-lipsync-generator - AI video translator: https://kenerateai.com/ai-video-translator-and-dubbing - Vidnoz alternative: https://kenerateai.com/vidnoz-alternative - Magic Hour alternative: https://kenerateai.com/magic-hour-alternative ## Sources - Kenerate Avatar Talk: https://kenerateai.com/app/avatar-talk - Kenerate Voice Studio: https://kenerateai.com/app/voice - Kenerate Auto Subtitles: https://kenerateai.com/app/tool/subtitles - Kenerate dubbing: https://kenerateai.com/app/tool/dubbing