Atlas / Free tools

AI Video Prompt Builder

Build a structured prompt from subject, action, camera, light and sound. Everything runs in your browser; no account, API key or paid generation request.

Your structured prompt will appear here.

How to use this tool

Start with the smallest realistic workload. Add retries based on accepted-output rate, not optimism. Rates are snapshots from named provider sources and should be rechecked before a large production run.

What is included?

The cost result covers generation at the listed per-second API rate. It excludes taxes, storage, upscaling, editing labor and any input-media fees.