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Seedance 2.5 on RunningHub: 30-Second Narrative, Multi-Modal Reference and Precise Video Editing

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Seedance 2.5 on RunningHub: 30-Second Narrative, Multi-Modal Reference and Precise Video Editing

Seedance 2.5 is now live on RunningHub. This episode runs three upgrades that matter most: 30-second long-form narrative, multi-modal reference, and precise video editing. The notes below come from the episode subtitles; this episode shipped no workflow JSON and no mirror, so no node-level parameters are claimed.

1. 30-second narrative

Seedance 2.5 supports 30-second long videos. The author reports that direct text-to-video at this length gives good results and faces are no longer as stiff as in earlier versions.

The episode walks one long sequence: a coin thrown into water, entering a temple, a statue awakening, a miracle revealed, then pushing to a sea of clouds and a heavenly palace. A simple character description is enough to give the role some character.

2. Multi-modal reference

The author calls this the core Seedance capability: in real video work you cannot control character motion, scene and camera with one prompt, so you split the controls. Seedance 2.5 supports up to 30 images and 10 audio clips, and strengthens white-model (untextured) motion and creative references.

The official guidance states the white model can control spatial structure, character pose and motion paths, and camera angles. In the giant-monster battle example the author supplies 5 images and 3 videos: one face reference for close-ups, one three-view sheet for the character, one three-view sheet for the giant, one for the opening shot, one for the later battle; video 1 controls how the giant raises its foot to stomp, video 2 controls the escape motion, and video 3 provides an action reference sheet from which three actions are taken (FIGHTER_02 punching, FIGHTER_01 airborne spinning kick, CASTER_04).

The author also used Seedance's official prompt guide skills rather than hand-writing prompts.

3. Precise video editing

The third upgrade is precise video editing, tested in the same running session on RunningHub's infinite canvas.

How to run it

The episode uses RunningHub's infinite canvas: open RunningHub, click the infinite canvas, create a project, and add a video on the left. That gives access to Seedance 2.5.

RunningHub with creator invite code: https://www.runninghub.ai/?inviteCode=rh-v1111

The author mentions that at recording time a top membership could reach a 2.9-fold discount and 480P rendering cost about 0.21 CNY per second. That is the price stated at recording time (episode dated 2026-08-08), not a current quote.

Links

Limits

  • All results here are the author's own tests, not an independent benchmark.
  • Pricing and discount figures are as stated at recording time and may have changed.
  • Availability and features depend on the RunningHub platform and the Seedance 2.5 release.

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