Krex AI

Generation language

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

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Ad Agent

A conversational way to build a talking-head product ad — it asks one thing at a time, renders, then refines the same video from your follow-up messages.

Ad Agent is a guided, conversational way to build a talking-head product ad. It walks you through the essentials one step at a time, then renders — and you keep refining the same video by chatting.

What it does

Ad Agent asks for one thing at a time: what you're advertising, a short description, an avatar, a product image, and the platform. Once it has what it needs, it renders a talking-head ad. After that, your follow-up messages refine the same render — you can change the scene, the outfit, or the script without starting over.

How to use it

  1. Open Ad Agent from the Studio or Tools.
  2. Answer each prompt as it comes: what you're advertising and a short description.
  3. Choose an avatar and add a product image.
  4. Tell it which platform the ad is for.
  5. Let it render the talking-head ad.
  6. Send follow-up messages to refine the same render — adjust the scene, outfit, or script.

Tips

  • Answer one prompt at a time; the agent moves faster when you keep replies focused.
  • Use follow-ups to iterate instead of rebuilding — changes apply to the same video.
  • A clear product image and platform choice lead to a tighter first render.
  • Prefer filling out a form? Use the form-based Product Ad Wizard instead.

Ready to start? get started or try the Marketing Copilot.