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Overview

Go from 0 to video with just a prompt — enabling anyone to go from idea to edited talking video, featuring actors that don’t exist. With this first-of-its-kind tool, it’s never been easier to turn text into professional-quality videos or ads. Prompt to Video is powered by Mirage, our groundbreaking video generation model.

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What edits are applied to the video?

All elements of professional video storytelling are seamlessly combined into one cohesive experience:
  • A-Roll: A Mirage-generated actor addresses the camera directly, delivering your message with natural expression and movement.
  • B-Roll: Contextual images and videos are generated and thoughtfully incorporated to enhance your video and message.
  • Professional editing: Our model will then analyze the content and apply choice transitions, sound effects, music, zooms, cuts, and other edits.
The result is a fully produced and fully AI-generated talking video that’s engaging and polished — all from a single prompt.

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How It Works

  1. On the Home screen, open the menu and choose Avatar.
  2. Pick one actor from the actors library.
  3. (Optional) Add an AI Edit style. AI Edit styles let Captions automatically edit the video to match a look you choose. Selecting an AI Edit style uses more credits.
  4. Write your prompt and describe what the video should be about.
  5. After you enter the prompt, Captions prepares a plan you can review and change:
  • Edit the prompt: Any edit to the prompt creates a completely new video plan.
  • Voiceover only: Turn this on if you do not want the AI actor’s face to appear in the video.
  • Outline and recommended cuts: Captions can detect pauses such as filler sounds (for example, “um” and “hmm”) and remove them from the audio and outline. Review the suggested cuts. To keep the original audio and outline, tap Restore original, or tap Revert on each cut you want to undo. Then tap Save.
  • Apply edit style
    • Style: Change the overall editing style of the AI video.
    • Edit intensity: Adjust how often edits and effects appear.
    • Color: Adjust color branding for edits and captions.
  • Insert media
    • Custom media: Import your own images and B-roll to use in the edit.
    • Generate media: Lets Captions generate B-roll and images for you. Turning this on uses more credits.
When you are done, continue through generation. After the video finishes, you can open it in the Captions editor to adjust shot styles and fine-tune the edit before you export.
Captions iOS Avatar prompt-to-video flow for creating an AI talking video

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Frequently Asked Questions

You retain full rights to all videos created. The AI-generated actors are completely virtual and free from licensing restrictions. You can read more in our Terms and Conditions.
You can generate videos in 39 languages.
Your video and audio files can be up to 100MB. (Desktop only)
Your prompt can be 30 seconds or 1,000 characters. (Desktop only)
Each segment can be up to 4 seconds. (Desktop only)
Your final video can be up to 30 seconds. (Desktop only)
Yes! If you’re unhappy with any clips, you can click the regenerate button to see a fresh take using the same script and actor setting. (Desktop only)
You can use folders to manage and organize your projects better. Use the New Folder option to create a new folder. (Desktop only)
Captions Mirage Studio project folders view for organizing AI video generation projects
Last modified on July 29, 2026