Demo 1
Mirror scene
Subject and camera continuity inside a single generated shot.
Released July 31, 2026
What's New in Seedance 2.5
Seedance 2.5 expands a continuous one-shot to 30 seconds and accepts up to 50 combined references: 30 images, 10 videos, and 10 audio files. It keeps synchronized native audio and supports output up to 4K. The practical gains over Seedance 2.0 are a longer timeline and much larger multimodal input capacity.
- 30 sec
- one-shot ceiling
- 50
- combined references
- 4K
- output capability
Render proof
Seedance 2.5 Update in Motion
Two visually distinct demos show the continuous action, subject control, and richer scene direction supported by the update.
Demo 2
Expressive product scene
A visually distinct example of richer scene direction.
A 30-second continuous shot
What is the headline change in Seedance 2.5?
ByteDance released Seedance 2.5 on July 31, 2026. The headline change is a continuous video up to 30 seconds in one generation. Seedance 2.0 reached 15 seconds, so version 2.5 doubles the one-shot ceiling.
A longer one-shot gives a scene room for a beginning, main action, and closing frame without joining 2 generations. It can cover a spoken testimonial, product demonstration, or changing camera move. Reviral's visible 1080p tier exposes choices from 4 through 29 seconds.
30s
one generation
Thirty-five more slots
What changed about reference inputs?
Seedance 2.5 accepts up to 50 combined references: 30 images, 10 videos, and 10 audio files in a single request.
Seedance 2.0 supports 15 combined references, including up to 3 audio references. Version 2.5 adds 35 total slots and raises the audio allowance by 7. Images establish character, product, wardrobe, or location; video shows motion; audio guides speech, rhythm, or atmosphere. A simple clip can still start with 1 image and 1 prompt.
More audio references, not first-time sound
Is native audio new in Seedance 2.5?
No. Both Seedance 2.0 and 2.5 can generate sound with the picture, while 2.5 expands the number of audio references from 3 to 10.
Seedance 2.5 can create synchronized dialogue, ambience, music cues, and effects in the same generation as the video. Because picture and sound share one timeline, a visible action can pair with its effect and a speaker with exact dialogue. The new input capacity gives creators more source audio for a scene that can run twice as long.
Model capability vs visible tier
Does Seedance 2.5 support 4K output?
Yes, Seedance 2.5 supports output up to 4K. Reviral's currently proven customer-visible price table is for 1080p, so distinguish the model's maximum capability from the tier shown in the browser.
Resolution and duration solve different problems. A 4K option increases pixel dimensions, while 30 seconds increases timeline length. Choose the resolution required by the destination and the shortest duration containing the full action. Confirm both controls because a model-level maximum does not mean every platform exposes every combination.
4K
maximum output capability
Four visible price points
How much does the new model cost on Reviral?
Reviral's visible 1080p tier starts at 30 credits, equal to $0.59, for 4 seconds. A 29-second clip uses 216 credits, equal to $4.21.
The middle choices are 10 seconds for 75 credits or $1.46 and 20 seconds for 149 credits or $2.91. One credit is worth $0.0195. The browser shows the exact total before generation, letting creators test at 4 seconds before committing to 20 or 29. See /seedance-2-5-pricing for effective cost per second.
Longer, reference-heavy projects
Who benefits most from the 2.5 update?
The update benefits projects that need more than 15 seconds, more than 15 references, or more than 3 audio inputs. Those are direct capacity gains over Seedance 2.0.
A product team can provide several product angles, a location, movement clips, and sound cues in one request. A story can use separate images for recurring characters and reserve the full 30 seconds for continuous action. A creator making a simple 4-second loop may not need the limits, but can still use the model with a narrow prompt and 1 reference.
Begin with one clear action
How do you start using Seedance 2.5?
Open /seedance-2-5, select a format, and add a prompt or reference media. Review the duration, 1080p credit price, and input assignments before starting the render.
Begin with 1 clear action at 4 seconds for 30 credits, then extend the successful direction to 10, 20, or 29 seconds. The comparison at /seedance-2-5-vs-seedance-2-0 maps every version change, while /tools/prompt-to-video helps turn a written scene into a project.
Use the larger canvas
Try the Seedance 2.5 Update
Start with a focused prompt or reference, check the exact price, and render in your browser.
Start freeLast updated: August 10, 2026