GitHub Open Video
Preview Film check
Built-in template

Make a
launch film

Describe it in a few lines. Chucksi writes the beat sheet, scores it at an exact tempo and cuts the words to the beat, with real motion blur.

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Film check

Measured on the beat grid, the way the reference film is checked

The blocks

What the engine can draw

How it works

Words on the beat. Your brief becomes a beat sheet: a few words per beat, a block for each phrase, and the drop where the film turns. Llama 3.3 70B writes it on Cloudflare's free allowance, or a built-in template does, offline.

Scored at an exact tempo. The music and the cut sounds are synthesized in your browser at the tempo you pick, so every cut lands on a beat by construction. No samples, no paid music model.

Code moves it. Each frame is drawn by code: slams, whip pans, colour grounds, extruded 3D type, typed prompts, slot reels and your own stills. The export averages several sub-frames per frame across a 180° shutter for real motion blur, and WebCodecs writes an MP4 with sound.

Models & limits

Beat sheet: Llama 3.3 70B (open weights) on Cloudflare's free daily allowance, or a built-in template. Music and sound: synthesized in your browser. Motion and encoding: your browser. Cost: $0.