3 Models Available
An editor inherits a 5-second AI clip that needs to be 12 seconds for the cut — extend it without re-prompting from scratch. On Martini's canvas, drop the original clip into a video-to-video node, chain Pixverse Extend, Wan 2.6, or Runway Aleph downstream, and tail the new motion into the rest of the timeline. The result is an approved hero shot lengthened to fit a 15-second ad, or a B-roll insert seamlessly looped — all without losing the look of the original. Pick a model below to walk through your extension flow.
ByteDance
Pixverse Extend is the specialist for one job and one job only: take a video clip and seamlessly continue it. It does not generate from text, it does not animate a still image, and it does not edit content — its single purpose is preserving original motion, style, and lighting in the continuation. For an editor who inherits a 5-second AI clip that needs to be 12 seconds, Pixverse drops onto the canvas as a downstream V2V node and extends the footage without re-prompting from scratch.
Alibaba
Wan 2.6 extends clips by chaining its general I2V mode off the source clip's last frame — a budget-friendly approach when Pixverse Extend is overkill or you want creative control over the extension. Drop the source into a frame-extraction tool node, pipe the last frame into Wan 2.6 with a continuation prompt, and the model generates new footage that picks up where the original left off. For high-volume production where credits matter and the extension can absorb a small style shift, Wan is the practical pick.
Runway
Runway Aleph is V2V-only — it operates on existing footage and preserves the original camera and timing exactly. While its primary use is style transfer and reference-driven re-render, Aleph can also be used for extension by pairing the source clip with a continuation reference image and a directional prompt. The output picks up the source's motion vector while honoring the new reference. For an editor who needs a hero shot lengthened with a specific look (a brand seasonal pivot mid-clip), Aleph is the most controllable extend option.