Krex AI

Generation language

Default language for AI-written scripts, TTS voiceovers, and captions. You can still override per-job.

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Talking-Head Video

Turn a script into a lip-synced avatar speaking to camera, with burned-in captions — pick an avatar and voice, paste your script, and render.

Talking-Head Video turns a script into an avatar speaking to camera. The result is a lip-synced clip with burned-in captions, ready in vertical or landscape.

What it does

You pick an avatar and a voice, paste your script, and Krex AI renders the avatar speaking it to camera, lip-synced to the audio. Captions are burned in automatically. You can use a preset avatar, your own photo, or a Personal Clone, and render the video vertical or landscape.

How to use it

  1. Open Talking-Head Video from the Studio or Tools.
  2. Choose an avatar — a preset, your own photo, or a Personal Clone.
  3. Select a voice.
  4. Paste your script.
  5. Pick vertical or landscape.
  6. Render, then find the clip in Projects to download or schedule.

Tips

  • Write the script the way it should be spoken — short, natural sentences read best.
  • A Personal Clone makes the avatar look and sound like you.
  • Choose vertical for TikTok, Reels, and Shorts; landscape for YouTube.
  • Captions are added for you, so leave on-screen text out of the script.

Ready to start? get started or try AI Cast.

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