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Introduction

Seedance 2.0 is a third-party model available in Runway that generates video from text prompts, reference images, audio, and video inputs. The model supports director-level control over camera movement, lighting, and character performance, and produces audio-visual output with synchronized sound — all within a unified multimodal architecture—meaning that you set the role of your inputs. 

This article covers how to access the Seedance 2.0, prompt and input best practices, available settings, and what to expect from your generations.


Spec information

Unlimited generations in Explore Mode

Explore Mode is supported for 480p and 720p resolutions
1080p is only supported while in Credits Mode

Duration

5-15 seconds

Aspect ratio

21:9
16:9
4:3
1:1
3:4
9:16

Output resolutions

480p, 720p, 1080p

Supported inputs

Text, Image, Video, Audio

Modalities

Text to Video
Image to Video
Video to Video
Audio to Video (Coming soon)

Input requirements Reference image Reference video Reference audio
Maximum inputs 9 3
*total duration of videos must be under 15 seconds

Coming soon

Maximum file size < 30 MB each < 50 MB each
Maximum duration N/A ≤ 15 seconds
Supported file types .jpg, jpeg, .png, .webm .mp4, .mov
Dimension requirements > 300 px
< 6000 px
≤ 720p

 

Step 1 — Selecting the inputs

Begin by navigating to the web app. There are two ways to navigate to the Seedance 2.0 model:

  • Search for it beneath the What do you want to create? bar 
  • Select Video, then select Seedance 2.0 from the model dropdown

 

Choosing the creation mode

Seedance 2.0 offers three creation modes, References, Start/End frames and Text to Video:

  • References Best for blending elements from multiple images or videos into a single generation. Use when you want granular control over what gets pulled from each input.
  • Start / End frames — Best for traditional image-to-video (start frame only) or keyframe control (start and end frames). Use when you need precise control over how a shot begins or ends.
  • Text to video — Best for generating without any image or video inputs. Also a good option when working with realistic human subjects, as it tends to avoid the moderation constraints that can come with image-based inputs.

 

Step 2 — Writing the prompt

Your prompt will vary depending on both your creation mode and what you're trying to accomplish. In any creation mode or model, we recommend using positive, unambiguous, and outcome-focused language.

 

Using the reference inputs

When using Reference mode, write your prompt as if you're describing the scene or sequence you want to appear, or the changes you want made, as well as how to use each provided input.

References are flexible by design. Whether you're working with images or videos, you control what gets pulled from each input and how it's used. 

  • With images, you might use one reference for a subject and another for a background, or instruct the model to use a frame at a specific point in the video. 
  • With videos, you can preserve the motion while changing the style, or keep the structure while swapping out characters entirely.

Prompt guide examples

Below are examples of different use cases that use a combination of image and video references, their prompt, and the results of the generation.

Use case Prompt Input(s) Result
Generating multi-shot video from image(s) multishot video. the woman realizes that she forgot there was a test that day. watercolor animation style
panic.png
Seedance 20 - the woman realizes that she forgot there was a test that day watercolor animation st.gif
Generating single-shot video from image(s) use Image 1 as the starting frame for a single, continuous shot in freeze time. the camera dramatically weaves through the completely frozen scene
fight.png
Seedance 20 - use Image 1 as the starting frame for a single_ continuous_ freeze time shot the cam.gif
Determining placement of a reference image use Image 1 as the first frame. the man slyly smiles and says "well, i guess i'll catch you later" before leaping out the airplane. a parachute deploys while he's midair.
slyman.png
Seedance 20 - use Image 1 as the first frame the man slyly smiles and says well_ i guess i_ll catc.gif
Swapping a character or object in a video replace the male knight in Video 1 with a woman. fiery red hair.
Seedance 20 - use Image 1 as the starting frame for a single_ continuous_ freeze time shot the cam.gif
Seedance 20 - replace the male knight in Video 1 with a woman knight fiery red hair.gif
Restyling an existing video relight Video 1 to dusk with a purple sky. colorize Video 1
Seedance 20 - cinematic multishot of the car performing tricks in the vast field.gif
Seedance 20 - relight Video 1 to dusk with a purple sky colorize Video 1.gif
Animating a storyboard use Image 1 as a storyboard to guide the scenes
Concept 1-Runway_Create_a_3x3_live_action_040626 (3).png
Seedance 20 - Use Image 1 as a storyboard to guide the scenes.gif
Apply camera motion to a new scene apply the camera motion from Video 1 to the scene in Image 1
house480.gif
THANKYOU.png
Seedance 20 - Apply the camera motion from _720 to the scene in Image 1.gif

 

Step 3 — Generating the Video

Click the Generate button to start the generation. The total processing time will depend on your inputs and selected output duration and quality, but typically takes been 2-10 minutes to complete once started.

 

Troubleshooting

In the event of generation errors, review the details below to learn more about troubleshooting:

Unable to start a generation

If you're unable to start a generation because the button is greyed out, this is due to the references not meeting the model's input requirements.

Hover over the greyed Generate button to learn more about the required adjustments and review the Spec table for more details on input requirements.

Generation failed during processing

In most cases, a generation failing is the result of third-party content policies. Third-party restrictions can be indentified by the error referencing the specific model, such as The request was blocked by Seedance 2.0. Please update your input and try again.

This moderation is managed by the provider. To continue generating, you must update your inputs to comply with the restrictions.

Please note that repeated attempts to re-run the same moderated inputs may increase your likelihood of automated account suspension. Please update your inputs after encountering a moderation error before generating again.

 

FAQ

Why can't I generate 1080p Seedance 2.0 videos with Explore Mode?

In order to keep up with increasing demand while still keeping wait times down, Explore Mode now focuses on 720p generations with Seedance 2.0. This means shorter queue times and more generations. 1080p continues to be available in Credit Mode.