Promptpan

All · Motion graphics · How-to explainer

587Before and After 15s — from a blank page to a finished poster in one frame

Add a name and the before and after states to make a 15-second vertical motion graphics video that shows the change in one frame, with sound.

What you get

  • A vertical MP4 (15 seconds, 60fps, with sound)
  • Render code that draws the video
  • Music made in code, included in the video
Example — this prompt run once with GPT-6 Astra, unedited (turn the sound on)

Made with GPT
  • GPT-6 Astra Made with this AI

Fill in the fields

  1. 1Fill in the fields
  2. 2Copy the prompt
  3. 3Paste it into an AI that can run code (Claude Opus 5.5 · GPT-6 Astra · Gemini Argon)
  4. 4It builds the HTML, renders it itself and leaves an MP4
  5. 5To change it, edit the settings panel at the top of the HTML and run one render command No new request
Ideas
Ideas
Ideas
Output format

Choose a mode, then set the size.

Open ClaudeOpen ChatGPT

Full prompt 876 characters
Make a dynamic 15-second vertical before-and-after motion graphics video for "【Name】": before = 【Before】, after = 【After】. Make the switch feel satisfying. Go all out and make the music in code.
Rules: 1080x1920 vertical, 60 fps, exactly 15 seconds, MP4 with sound. Text big enough to read on a phone. No corner labels, timecodes or captions, only the motion. Keep moving to the end with no frozen frames. For Korean text use a Korean font such as @fontsource/black-han-sans. Do it all now without asking.

[Final output format]
Output size 1080x1920 pixels, 9:16 portrait story. Keep all text inside the central 80% of the height.
This selected output format takes priority over any fixed canvas size or aspect ratio elsewhere in this template. Adapt the composition, text zones and margins to the selected canvas without stretching or cropping essential content. Device safe areas apply only when a device is selected. Never print these format instructions on the image.

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How to use it · FAQ

Before and after in one frame

A blank page becomes a finished poster in a 15-second vertical video. The example cover has a neon yellow background, large Korean text meaning “Unfold your ideas,” a purple flower with orange accents, and the Promptpan name at the bottom. The prompt asks for music made in code too.

How to fill it in

Enter your brand or service name, then briefly describe its before and after states. The defaults take Promptpan from a blank page to a finished poster. Choose two states with a clear visual difference.

Ask for fixes like this

Try “Make the before and after easier to compare in one frame,” “Make the text bigger,” or “Match the music to the switch.” Point to the part you want changed.

How we made it

We ran this prompt once with GPT-6 Astra and posted the result as the example without edits. Results vary a little on every run.

What your PC needs

Your PC may slow down briefly while the video is made. This prompt is for an AI that writes and runs code, such as Claude Code or Codex, so an image AI will not produce the video. Check each outside service for its own pricing and terms.