On the running time allowed, the rules of the Reply AI Film Festival say this: 1 to 40 minutes, with longer films eligible only for a special mention. From 1 source page, read 2026-09-25; no maker pays to be listed.
Your AI short movie must be between 1 and 40 minutes long.
1 Billion AI Film Award, AI for Good Film Festival, Bochnia International AI Film Festival, Chroma Awards, Human vs. AI Film Festival, Runway AI Festival, Runway Gen:48 and World AI Film Festival have this reading, “a minimum and a maximum”: 9 festivals in all.
It reflects the rules published for the latest edition on the reading day.
Running time can rule out a finished AI film on its own. A 60-second cap, a 314-second cap and a three-minute minimum cannot all be met by one cut, so a film meant for several festivals may need more than one version.
For an entrant reading “Reply AI Film Festival”, this is what SceneMixer publishes about the film its pipeline hands over:
A script longer than about 10,000 characters (counted as Chinese-equivalent characters) is read in two passes: first the cast, sets and props, then the episode list with a short outline per episode.
Paste a scene or a short script and SceneMixer gives you a storyboard — numbered shots with framing and seconds — and then a moving version of each segment, which you can join into a rough cut of the scene.