Seedance 2.0 Fast Image-to-Video
Fast video generation from first-frame image (and optional last-frame) with native audio.
What it does
Seedance 2.0 Fast Image-to-Video, in practice.
Seedance 2.0 is a state-of-the-art multimodal generative AI model designed for synchronized video and audio content creation. Developed by ByteDance and integrated into the CapCut/Dreamina platform as of March 2026, this model family advances the field of generative multimedia by combining sophisticated diffusion transformer architectures with physics-informed world modeling for realistic motion and spatial consistency. Seedance 2.0’s significance lies in its Dual-Branch Diffusion Transformer (DB-DiT) architecture that jointly processes video and audio streams, enabling phoneme-level lip synchronization across multiple languages. Compared to previous iterations, it achieves substantially hig
- Dual-Branch Diffusion Transformer Architecture: Seedance 2.0 integrates separate yet synchronized diffusion branches for video and audio, enabling tight coupling between visual motion and sound generation. This architecture improves motion realism and audio-visual coherence beyond previous generative models.
- World Model with Physics Simulation: The model incorporates a physics-based world modeling approach that simulates realistic object motion and spatial consistency over time. This leads to naturalistic dynamics and stable scene composition across generated video sequences.
- Rich Multimodal Input Support: Seedance 2.0 accepts diverse input formats including text prompts, up to 9 images, and up to 3 video or audio clips of 15 seconds each. This flexibility allows nuanced content creation workflows combining static, dynamic, and auditory cues.
- Phoneme-Level Lip Synchronization: The native audio generation pipeline supports lip-sync at the phoneme granularity in 8+ languages, ensuring high fidelity mouth movements closely match generated speech or singing.
- High Usability and Efficiency: The model achieves an estimated 90% usable output rate compared to an industry average of approximately 20%, reducing post-processing overhead. Additionally, it delivers a 30% inference speed advantage over predecessor systems.
- API Variants for Different Use Cases: The Seedance 2.0 endpoint is geared toward high fidelity and cinematic visual effects suitable for final production, while the Seedance 2.0 Fast variant offers roughly 3 times faster generation and approximately 91% cost savings at $0.022 per second of output, ideal for rapid iteration and volume workflows.
Run Seedance 2.0 Fast Image-to-Video
from $0.041/secParameters
What you can set.
| Parameter | What it does | Options |
|---|---|---|
prompt | Text prompt describing the desired video motion. Optional but recommended. | |
image | First-frame image URL, Base64, or asset reference (asset://<ASSET_ID>). The video starts from this image. Formats: jpeg/png/webp/bmp/tiff/gif, dimensions (300,6000)px, aspect ratio (0.4,2.5), max 30MB. | |
last_image | Last-frame image URL, Base64, or asset reference. The video transitions from the first frame to this last frame. Same format requirements as image. | |
duration | Video duration in seconds (4-15), or -1 for model to choose automatically. | -1 4 5 6 7 8 9 10 11 12 13 14 |
resolution | Video resolution. | 480p 720p 720p-SR 1080p-SR 1440p-SR |
ratio | Aspect ratio. 'adaptive' matches the first frame image aspect ratio. | 16:9 4:3 1:1 3:4 9:16 21:9 adaptive |
bitrate_mode | Output video bitrate mode. 'high' encodes at a higher bitrate for a crisper, larger file; 'standard' uses the normal bitrate. Does not affect token cost. | standard high |
generate_audio | Whether to generate synchronized audio. | default True |
seed | Seed integer used to control the randomness of generated content. Value range: [-1, 2^32-1]. The default -1 means a random seed is used. The same seed with the same request produces similar results, but complete consistency is not guarantee | default -1 |
watermark | Whether to add a watermark. | default |
return_last_frame | Whether to return the last frame as a separate image. | default |
Sample prompt
The prompt behind the sample.
A powerful off-road vehicle emerging from the distance and driving toward the camera across a vast rugged landscape, dust trails rising behind the tires, cinematic wide shot, low-angle camera perspective, dramatic sunlight, epic adventure movie atmosphere, ultra-realistic, 4K.
duration: 5resolution: 720pratio: adaptivegenerate_audio: Truewatermark: return_last_frame: FAQ
Short answers.
How much does Seedance 2.0 Fast Image-to-Video cost?
Pricing starts at $0.041 per second of video at the base resolution; higher resolutions and longer durations cost more. An 8-second clip at the base tier is about $0.32. Usage is billed per request from your balance — no subscription.
Does Seedance 2.0 Fast Image-to-Video run uncensored here?
No. ByteDance applies its own content policy to this model regardless of where it is called from. For a route without an extra platform filter use Uncensored MiniMax H3; this page lists Seedance 2.0 Fast Image-to-Video for everything else it does well.
What does Seedance 2.0 Fast Image-to-Video take as input?
It is a image-to-video model. Fast video generation from first-frame image (and optional last-frame) with native audio.
How do I use it?
Enter an invite code to open Chat with the model loaded, or join the waitlist. We open seats in batches and track which models are requested most.
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