Seedance 2.5 AI Video Generator
Seedance 2.5 can generate a full 30-second video in one pass — with up to 50 references. Try it free.
Key Features of Seedance 2.5
- •Up to 30 Seconds in One Pass: Generate 4–30 second clips in a single run — long enough for setup, development, turning point, and payoff without stitching short takes.
- •Multimodal Reference Stack: Feed up to 30 images, 10 videos, and 10 audio clips in one job so characters, scenes, motion, and sound stay under your control.
- •Four Creation Modes: Text-to-video, first-frame, first-and-last-frame, and full reference mode — pick the workflow that matches your shoot.
- •Native Audio, Locked to the Cut: Dialogue, ambience, and Foley land on the right frames — no separate soundtrack pass.
- •Native 4K: Crystal-clear, production-ready native 4K — no upscaler bolted on after the fact.
Up to 30 Seconds in One Pass
Where Seedance 2.0 topped out at 15 seconds, Seedance 2.5 stretches a single generation to 30 seconds. Inside that window the model can organize multiple connected shots — not just stretch one pose — so a singer can go from dressing room to corridor to stage in one continuous take.
| Reference Image | Prompt | Output Video |
|---|---|---|
 | A realistic handheld travel vlog filmed by a friend following the main character throughout the day. Use the woman from the reference image as the main subject. Maintain her exact facial identity, hairstyle, facial… |
Multimodal Reference Stack
Seedance 2.5 accepts up to 30 images, 10 video clips (≤200MB each, 2–30s, combined ≤30s), and 10 audio clips (≤15MB each, 2–30s, combined ≤30s) in one reference job. Use them for characters, venues, props, motion, clay-render blocking, and voice — the model maps composition, style, and identity across subjects and cuts.
| Reference Image | Prompt | Output Video |
|---|---|---|
 | 15-second cinematic action sequence. Use the character from the reference image as the main character. Maintain the same face, hairstyle, outfit, and overall design consistency throughout. 0–2s: The character sits… |
Four Creation Modes
Start from a prompt alone, lock the first frame, bookend first and last frames, or run a full multimodal reference stack. First-frame and first-last modes follow the input image aspect automatically; text and reference modes expose the full aspect list including adaptive.
Stylized 3D animated short film, indie art-house animation aesthetic. Semi-realistic painterly 3D render, naturalistic slender proportions with elegant elongated limbs, NOT cartoon, NOT oversized heads. Soft painterly…
Native Audio, Locked to the Cut
Flip generate-audio on and Seedance 2.5 returns sound with the picture: speech, room tone, and effects already timed to the edit. Leave it off when you only need silent plates.
A fast-tracking shot through a futuristic city with buildings made from reflective organic chrome. It is daytime, rainbows fill the sky, and an alien planet looms above. The camera zooms in on a robotic bee working…
Native 4K
Seedance 2.5 generates native 4K video so ads, screens, and editorial finals stay sharp without a separate upscale pass.
A 16:9 widescreen cool-toned fashion short film, set on a matte white studio stage. The floor has fine dark grid lines, with alternating squares illuminated by overhead light, forming minimalist chessboard-like pools…
Who Is Seedance 2.5 Built For?
One generation, a full 30-second commercial. Stack up to 50 brand refs so logos, faces, and packaging stay locked — less reshoot, more variants.
Block extended storyboard scenes with real camera moves and narrative weight before you book a crew. Test the whole beat in one take.
Swap colors, models, and lifestyle angles from the same reference stack. Keep the shot language consistent without rebuilding the whole clip from scratch.
Drop ready-to-post shorts with the same character across a week of content. Load a reference sheet once — stay consistent, post more.
Comparison: Seedance 2.5 vs. Seedance 2.0 vs. Veo 3.1
How Seedance 2.5 stacks up on the capabilities we actually ship — duration, references, modes, and audio.
| Feature | Seedance 2.5 | Seedance 2.0 | Veo 3.1 |
|---|---|---|---|
| Maker | ByteDance Seed | ByteDance Seed | Google DeepMind |
| Max single-pass duration | 4–30 seconds | 4–15 seconds | Typically 4–8 seconds |
| Reference capacity | Up to 30 images + 10 videos + 10 audios | Up to 9 images + 3 videos + 3 audios | Text / image focused |
| Creation modes | Text, first frame, first+last, reference | Text, first frame, first+last, reference | Text / image (+ limited reference) |
| Native audio | Optional, generated with the clip | Built into every generation | Native with lip-sync |
| Resolution (this platform) | 480p, 720p, native 4K | 480p–4K (model family) | Up to 1080p / 4K by route |
| Aspect ratios | Full list on text/reference; adaptive on frame modes | Wide list including adaptive | 16:9, 9:16, Auto |
| Best for | Longer scenes + heavy multimodal control | Fast multimodal clips ≤15s | Cinematic storytelling shorts |
YouTube Videos About Seedance 2.5
Seedance 2.5 is now Live — How to Use Seedance 2.5
Seedance 2.5 is Here — Everything You Need to Know
Seedance 2.5: Full Test, Tutorial & Pricing
How to Generate Videos with Seedance 2.5
Create your first Seedance 2.5 video in four simple steps.
Choose text-to-video, upload a first frame (or first + last), or open reference mode for multimodal assets.
Describe the story, camera, and timing. In reference mode you can mix images, clips, and audio — stay within 30 / 10 / 10 and the combined duration caps.
Dial duration from 4–30 seconds, pick resolution including native 4K, choose an aspect ratio when available, and decide whether to generate audio.
Hit Generate, wait for the job to finish, preview the result, then download or iterate with a tighter prompt.
Frequently Asked Questions About Seedance 2.5
What is Seedance 2.5?
Seedance 2.5 is ByteDance’s July 2026 video model focused on longer one-take storytelling and richer multimodal referencing. On this site you can generate 4–30 second clips from text, frames, or up to 50 reference assets with optional native audio.
How is Seedance 2.5 different from Seedance 2.0?
The headline upgrades are length and references: up to 30 seconds per generation (vs 15 on 2.0) and a much larger reference stack — 30 images, 10 videos, and 10 audios versus the tighter 2.0 caps. Continuity across shots and multimodal control are also stronger.
Does Seedance 2.5 support 4K?
Yes. Seedance 2.5 supports native 4K output — sharp, production-ready video without relying on a separate upscaler.
What reference limits apply?
In reference mode: up to 30 images, 10 videos, and 10 audios (50 total). Videos ≤200MB and 2–30s each (combined ≤30s). Audios ≤15MB and 2–30s each (combined ≤30s).
Does Seedance 2.5 include audio?
Yes. You can enable generate-audio so sound is produced with the video. It does not change our credit rate — audio is included in the generation settings, not billed as a separate add-on.
Which modes can I use?
Text-to-video, first-frame image-to-video, first-and-last-frame, and multimodal reference. Frame modes lock aspect ratio to adaptive (follow the input image); text and reference modes expose the full aspect list.
Can I use Seedance 2.5 for commercial work?
Paid subscribers can use generated videos commercially under our terms. Free-trial output is for personal, non-commercial use unless your plan says otherwise.
How do I get the best results?
Write a timed narrative (what happens in each beat), attach clear identity references for every important character, and keep combined reference video/audio under 30 seconds. For frame modes, use a sharp first frame and let aspect stay adaptive.