30 Second Videos in a Single Generation
Seedance 2.5 can generate up to 30 seconds of continuous video in a single generation. This can be extended by creating multiple back-to-back videos, each up to one minute and 30 seconds long, with multiple camera cuts or scene transitions added to each individual segment. This allows you to create entire commercials or short stories from a single prompt.
Native 4K, 10-Bit Colour
Create truly cinematic masterpieces. The SeeDance 2.5 AI video generator supports native 4K output at a 10-bit colour depth, enabling smoother gradients and providing more headroom for professional colour grading. If you want to push and pull the footage after generation, you can.
Even Better Prompt Adherence Than Before
ByteDance reports roughly 20% better prompt adherence than SeeDance 2.0, meaning the shot you describe is more likely to be the shot you get.
50 References
You can add up to 50 reference files to your prompt. You can now add up to 30 images, 10 video clips and 10 audio clips, compared to 12 in the previous version.
Overchat AI brings you the power of the world’s top AI models: GPT, Claude, Gemini, Mistral, and more.

What can you create with Seedance 2.5? Get inspired with these ideas:
Make Viral Reels
Thanks to the fact that each clip can be up to 30 seconds long, you can create entire shorts or reels in one go that are immediately ready to post to your account.
Create AI Films
SeeDance is renowned for being the most cinematic video model, and this generation is no exception. With up to 50 reference images, you have an unprecedented amount of creative control.
Direct Scenes
If you provide SeeDance 2.5 with detailed instructions on lighting, camera work and character actions, it will accurately recreate all the details, even in the longest prompts.
Create Audio With Sound
In SeeDance 2.5, audio exists within the same latency space, meaning that audio effects are generated exactly on cue and perfectly aligned with what is happening on the screen.
Shoot Commercials
Use the built-in video length extension features to create commercial videos of up to 90 seconds in length. This allows you to produce video ads for YouTube or even TV in a single pass.
Animage Images
Upload a still image and SeeDance 2.5 will use it as the first frame of a video. Describe the motion or action and watch it come to life on screen.
Create with Seedance 2.5 in 3 simple steps
Describe What You Want
Write your prompt and attach any reference images, clips or audio you want Seedance to follow.
Seedance 2.5 Generates It
The model renders picture and synced sound together, up to 30 seconds at native 4K.
Download and use
Get your result ready to share, post, or integrate into your projects.
What is Seedance 2.5?
Seedance 2.5 is ByteDance’s video generation model for longer, more controllable clips. It can create up to 30 seconds of video in one generation, work from image, video, and audio references, and make targeted changes without rebuilding the entire shot.
How long can a Seedance 2.5 video be?
Seedance 2.5 videos can be to 30 seconds in a single generation, extendable to 90 seconds through specialized tools.
Does Seedance 2.5 generate 4K video?
Yes, natively rather than by upscaling a smaller render, and at 10-bit colour depth. That extra depth is what gives you smooth gradients in skies and skin, and enough latitude to colour grade the clip afterwards.
Does Seedance 2.5 generate audio too?
Yes. Seedance 2.5 can generate synchronized audio for the scene, including speech, ambience, music, and sound effects. The available audio controls may differ between products.
How many reference files can I use?
Seedance 2.5 supports up to 50 references in one generation. These can include images, video clips, audio, storyboards, and style references. File types and upload limits may vary by product.
When and where can I use Seedance 2.5?
ByteDance announced Seedance 2.5 at its Volcano Engine FORCE conference and is rolling it out through Jimeng AI and the Pro tier of Doubao, with an API expected on the Volcano Engine Ark platform. There is no public date for wider availability yet. Join the early access list above and we will email you the moment it is live on Overchat AI.