> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Seedance 2.5 - AI video generation with audio

> Generate 30-second videos with synchronized audio, multimodal reference control, and precise editing using Seedance 2.5 in ComfyUI

Seedance 2.5 is ByteDance's new-generation video creation model, launched on July 31, 2026. Building on the unified multimodal audio-video joint-generation architecture of Seedance 2.0, it shifts the focus from generating a single clip to completing a full creative work, with major breakthroughs in long-form storytelling, multimodal reference, and editing.

The model generates up to 30 seconds of high-quality audio-video in a single pass, with improved shot transitions and scene changes for stronger continuity in longer videos. It supports multiple rounds of extension, so creators can build multi-minute content with a consistent audiovisual language, bringing a complete story to life in one take. Image, audio, and motion quality are all improved over the previous generation, resulting in more natural, polished visuals.

<Tip>
  To use the Partner Nodes, you need to ensure that you are logged in properly and using a permitted network environment. Please refer to the [Partner Nodes Overview](/tutorials/partner-nodes/overview) section of the documentation to understand the specific requirements for using the Partner Nodes.
</Tip>

<Tip>
  <Tabs>
    <Tab title="Local users">
      Make sure your ComfyUI is updated.

      * [Download ComfyUI](https://www.comfy.org/download)
      * [Update Guide](/installation/update_comfyui)

      Workflows in this guide can be found in the [Workflow Templates](/interface/features/template).
      If you can't find them in the template, your ComfyUI may be outdated.

      If nodes are missing when loading a workflow, possible reasons:

      1. You are not using the latest ComfyUI version (Nightly version)
      2. Some nodes failed to import at startup
    </Tab>

    <Tab title="Cloud users">
      * [Cloud](https://cloud.comfy.org) will update after ComfyUI stable release.

      So, if you find any core node missing in this document, it might be because the new core nodes have not yet been released in the latest stable version. Please wait for the next stable release.
    </Tab>
  </Tabs>
</Tip>

## Key capabilities

* **30-second generation**: Produces high-quality, 30-second audio-video clips in a single pass with multi-round extension
* **Audio-video sync**: Generates video and audio together, including dialogue and lip-synced speech
* **Fully upgraded multimodal referencing**: Accepts up to 30 reference images, 10 video clips, and 10 audio clips for character consistency, visual style, and motion rhythm control
* **Precise editing**: Offers timestamp-level control for targeted edits of video and audio, plus green screen and reference-based editing
* **Multi-round extension**: Extends clips to build multi-minute content with consistent audiovisual language
* **Versatile use cases**: Suited for brand films, episodic series, e-commerce content, product showcases, and character-driven short series

## Available workflows

### Text to video (T2V)

Generate a 30-second cinematic video from a text prompt, with synchronized sound and music.

<video controls className="w-full aspect-video" src="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/output/api_seedance2_5_t2v.mp4" />

<CardGroup cols={2}>
  <Card title="Run Text-to-Video on Cloud" icon="cloud" href="https://cloud.comfy.org/?template=api_seedance2_5_t2v&utm_source=docs&utm_medium=referral&utm_campaign=seedance-2-5">
    Try the Text-to-Video workflow instantly on Comfy Cloud.
  </Card>

  <Card title="Download Text-to-Video workflow" icon="download" href="https://github.com/Comfy-Org/workflow_templates/blob/main/templates/api_seedance2_5_t2v.json">
    Download the workflow JSON.
  </Card>
</CardGroup>

### First-last-frame to video (FLF2V)

Provide a starting frame and an ending frame, and Seedance 2.5 generates the motion and transitions between them, locking both endpoints.

<img src="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/templates/api_seedance2_5_flf2v-1.webp" alt="Seedance 2.5 FLF2V workflow preview" />

<CardGroup cols={2}>
  <Card title="Run FLF2V on Cloud" icon="cloud" href="https://cloud.comfy.org/?template=api_seedance2_5_flf2v&utm_source=docs&utm_medium=referral&utm_campaign=seedance-2-5">
    Try the First-Last-Frame-to-Video workflow instantly on Comfy Cloud.
  </Card>

  <Card title="Download FLF2V workflow" icon="download" href="https://github.com/Comfy-Org/workflow_templates/blob/main/templates/api_seedance2_5_flf2v.json">
    Download the workflow JSON.
  </Card>
</CardGroup>

<details className="prose" style={{marginBottom:"1rem"}}>
  <summary>Input materials</summary>

  Download these sample input images to try the workflow:

  <CardGroup cols={2}>
    <Card title="First frame" icon="image" href="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/input/pool_start_frame.png">
      Download sample first frame
    </Card>

    <Card title="Last frame" icon="image" href="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/input/pool_end_frame.png">
      Download sample last frame
    </Card>
  </CardGroup>
</details>

### Reference to video (R2V)

Use reference images, video clips, or audio to control character consistency, visual style, and motion rhythm in a single output with synchronized sound and lip-synced dialogue.

<img src="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/templates/api_seedance2_5_r2v-1.webp" alt="Seedance 2.5 Reference-to-Video workflow preview" />

<CardGroup cols={2}>
  <Card title="Run Reference-to-Video on Cloud" icon="cloud" href="https://cloud.comfy.org/?template=api_seedance2_5_r2v&utm_source=docs&utm_medium=referral&utm_campaign=seedance-2-5">
    Try the Reference-to-Video workflow instantly on Comfy Cloud.
  </Card>

  <Card title="Download Reference-to-Video workflow" icon="download" href="https://github.com/Comfy-Org/workflow_templates/blob/main/templates/api_seedance2_5_r2v.json">
    Download the workflow JSON.
  </Card>
</CardGroup>

<details className="prose" style={{marginBottom:"1rem"}}>
  <summary>Input materials</summary>

  Download this sample input image to try the workflow:

  <CardGroup cols={1}>
    <Card title="Reference image" icon="image" href="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/input/medusa_poster.png">
      Download sample reference image
    </Card>
  </CardGroup>
</details>

### Video editing

Edit existing video clips by describing changes in natural language. Replace objects, swap backgrounds, change scenes, or transfer styles while preserving the original composition and motion.

<img src="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/templates/api_seedance2_5_video_editing-1.webp" alt="Seedance 2.5 Video Editing workflow preview" />

<CardGroup cols={2}>
  <Card title="Run Video Editing on Cloud" icon="cloud" href="https://cloud.comfy.org/?template=api_seedance2_5_video_editing&utm_source=docs&utm_medium=referral&utm_campaign=seedance-2-5">
    Try the Video Editing workflow instantly on Comfy Cloud.
  </Card>

  <Card title="Download Video Editing workflow" icon="download" href="https://github.com/Comfy-Org/workflow_templates/blob/main/templates/api_seedance2_5_video_editing.json">
    Download the workflow JSON.
  </Card>
</CardGroup>

<details className="prose" style={{marginBottom:"1rem"}}>
  <summary>Input materials</summary>

  Download this sample input video to try the workflow:

  <CardGroup cols={1}>
    <Card title="Input video" icon="video" href="https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/input/kitten_cop.mp4">
      Download sample input video
    </Card>
  </CardGroup>
</details>

## Get started

1. Update ComfyUI to the latest version
2. Go to Template Library, search for `Seedance 2.5`