Seedance 2.5 — One Continuous 30-Second 4K Take. No Stitching.

Seedance 2.5 AI video generator is the latest model in the Seedance family. It turns text, images, audio, video, and 3D blockouts into a thirty-second native 4K clip from a single prompt—no separate extend step and no upscale pass. Compared with Seedance 2.0, you get twice the native runtime, four times the reference slots, and noticeably tighter prompt fidelity.

Sign in, choose Seedance 2.5, write your brief, attach references if you need them, and submit. The Seedance 2.5 online generator returns an MP4 you can preview and download in the browser—no install, no timeline app. Most renders finish in a few minutes depending on resolution, duration, and queue load.

Yes. Every paid pack exports native 4K—the pixels are rendered at that resolution, not enlarged from 1080p. Free starter credits cap at 720p with a watermark. You can also target 480p, 720p, or 1080p when iterating. Aspect ratios include 16:9, 9:16, 1:1, and 4:3.

Yes. Seedance 2.5 text to video builds a clip from a written brief alone. Image to video animates a still or interpolates between first and last frame pairs. Universal Reference mode mixes images, clips, audio, and 3D blockouts in one brief—typical for branded or character-heavy work. See How to Use Seedance 2.5.

Up to fifty mixed multimodal references on paid packs—images, clips, audio, text, and blockouts—with each file assigned a clear role so they do not bleed together. Starter tiers allow fewer slots. A focused twenty-reference brief usually beats a cluttered fifty-file upload.

Seedance 2.5 3D blockout input is a simple untextured geometry scaffold you attach as a reference so the model follows your camera path and subject blocking. Export from Blender, Cinema 4D, Maya, or SketchUp, then describe materials and lighting in text. See Prompt Guide.

Yes. Thirty seconds is the native single-render ceiling for Seedance 2.5—one brief, one thirty-second AI video file back with no stitching two halves. For longer work, chain extensions from an existing clip or stitch several thirty-second segments that share the same references. Long chains can drift on identity or lighting—review each segment before you extend again.

Most Seedance 2.5 renders complete in two to five minutes, scaling with resolution, duration, and queue priority. A short 1080p clip on Starter often lands inside three minutes; a thirty-second 4K render on Professional typically finishes within five. Paid packs access a faster priority queue at peak hours.

Seedance 2.5 vs Seedance 2.0: 2.5 doubles native runtime (30s vs 15s), raises the reference ceiling from 12 to 50, adds 3D blockout input, and tightens prompt fidelity. Seedance 2.5 vs Veo 3: 2.5 leads on clip length and reference density; Veo 3 leads on cinematic color grading. Pick 2.5 when length, reference budget, or composition control matter most. See Seedance 2.5 vs 2.0 and Seedance 2.5 vs Veo 3.

Seedance 2.5 pricing starts at $9.9 for 99 credits ($0.10/credit), with Basic, Plus, and Professional packs down to $0.06/credit. Credits never expire. A 4-second Seedance 2.5 clip at 1080p uses about 40 credits; at 4K, about 60 credits on Standard quality. See Pricing.

Yes. Seedance 2.5 generates native audio with every clip—sound effects, ambience, and background music ride with the video unless you supply a reference track for rhythm or lip-sync. Brief Seedance 2.5 with audio reference clips to lock the sonic feel across the full thirty-second output.