MiniMax H3 Max Extend: Continue Any Video With AI

Extend is the continuation member of the MiniMax H3 Max family, built for the one job the others do not do: carrying footage you already have forward. Where the parent model generates a clip from a prompt or an image, Extend starts from your video and writes the next few seconds of it. Reach for it when a shot ends too early, when a scene needs room to breathe, or when you want a second beat without regenerating the first.

Set the length anywhere from 5 to 15 seconds and pick 480p, 768p, 1080p or 2K. The aspect ratio follows your source by default, or you can pin it to 21:9, 16:9, 4:3, 1:1, 3:4 or 9:16 when the new cut has to fit a different placement. Source clips run up to 60 seconds, so this works on real footage rather than only on short generations.

The model reads the final frame of your clip and builds forward from it, so the new footage inherits the framing, lighting and subject already on screen instead of opening a fresh scene. Your prompt describes what happens next - a turn, an entrance, a shift in the weather - and the generation carries on from where the shot actually stopped.

One setting decides what you get. Leave it on extended and your original and the continuation come back already joined as a single file. Switch to continuation and only the new footage returns, ready to cut in yourself or drop into a different edit. Prompt enhancement is on by default and fills out a thin description before the run - turn it off when you want the wording taken exactly as written.

Reach for Extend when a clip ends a beat too soon - an ad that needs a longer hold, an establishing shot that should linger, a social cut that came back short. There is no API key and no separate account: generate the continuation and carry it into the editor. Inside Picsart it sits alongside 150+ models, including Lip Sync for talking portraits and Camera Controls for programmed camera motion, so you can extend the shot here and switch models for the next one.