Seedance 2.5 AI Video Generator
Seedance 2.5 is ByteDance's next-generation video model — a full 30-second scene in one pass, guided by up to 50 multimodal references, with region-level editing and native audio up to 4K.
What Is Seedance 2.5?
The newest generation of ByteDance's Seedance video family: one pass now carries a full 30-second scene, briefed with up to 50 reference images, clips, and audio tracks — and region-level edits fix details without regenerating the shot.
A Full 30-Second Story in One Pass
Seedance 2.5 doubles the native clip length to 30 seconds and generates it as one continuous take — characters keep their identity, lighting holds, and pacing builds like edited footage, with no stitching between segments.
Brief the Scene with Up to 50 References
Feed the model what you mean, not just words: up to 30 images, 10 video clips, and 10 audio tracks in a single brief. Characters, products, styles, and motion stay faithful to the material you provide.
Fix One Detail, Keep the Whole Shot
Region-level editing changes just the part you point at — swap an object, clean up a corner, adjust a costume — while motion, lighting, and the rest of the frame stay exactly as generated. No full re-render required.
Native Audio, Up to 4K
Like the rest of the family, Seedance 2.5 generates sound and picture together — ambience, effects, and music synced to the action across the full 30 seconds — and renders up to 4K for final-delivery quality.
What Makes Seedance 2.5 Different?
The jump from good clips to usable scenes: longer takes, a much richer brief, and surgical edits — the reasons Seedance 2.5 is the best fit for ad-length storytelling.
30 Seconds, One Take
Native single-pass generation up to 30 seconds — double the previous ceiling — so a setup, a beat, and a payoff fit inside one continuous clip.
Up to 50 Multimodal References
Combine up to 30 images, 10 video clips, and 10 audio tracks in one brief — characters, products, styles, and sound all guided by real material.
Region-Level Editing
Change one region of the clip and keep everything else — lighting, motion, and composition survive the edit instead of being rerolled.
Native Audio-Video Generation
Sound is generated with the picture in one pass — ambience, effects, and music that follow the action, not a track stitched on afterward.
Up to 4K Resolution
Draft fast at lower resolutions, then render the final up to 4K — one ladder from quick preview to client-ready delivery.
Watermark-Free Downloads
Every clip downloads clean — no watermark, ready for posting, client decks, or a longer edit timeline.
Seedance 2.5 vs Seedance 2.0
Same ByteDance family, one generation apart. Seedance 2.5 stretches the take, deepens the brief, and adds surgical editing; Seedance 2.0 stays the fast workhorse for shorter cuts.
| Compare | Seedance 2.5 | Seedance 2.0 |
|---|---|---|
| Best for | Ad-length storytelling — a full 30-second scene generated as one continuous take. | Fast, polished 4–15 second clips for social cuts, teasers, and drafts. |
| Max clip length | Up to 30 seconds in one pass, no stitching. | 4–15 seconds, set by the second. |
| Reference inputs | Up to 50 multimodal references — 30 images, 10 video clips, 10 audio tracks. | Omni Reference with up to 12 files — 9 images, 3 video clips, 3 audio tracks — plus first and last frames. |
| Editing | Region-level editing — change part of the clip without regenerating the rest. | First-to-last-frame direction for reveals, transformations, and loops. |
| Resolution & audio | Up to 4K, with native audio generated in the same pass. | Up to 4K, with native audio generated in the same pass. |
How to Use Seedance 2.5
From a brief — or a photo — to a finished clip with sound, in three steps.
Describe the Scene or Drop In a Photo
Open Text to Video or Image to Video in the studio above and write the shot like a brief — subject, action, setting, camera movement — or upload the photo you want animated.
Tune Ratio, Resolution, Duration, and Audio
Pick an aspect ratio from widescreen to vertical, set the resolution and length, and leave audio on for a scored clip — the credit cost updates before you commit.
Generate, Preview, and Download
Press Generate and the clip lands in your history with sound. Rerun with one tweaked detail if a shot misses, then download the final watermark-free.