工作流 / 视频 / Seedance 2.5 Flash：图生视频
Seedance 2.5 Flash：图生视频

Seedance 2.5 Flash: Image to Video
用 Seedance 2.5 Flash（Seedance 2.5 更快的一档）把一张静态图变成视频：载入起始图、用提示词描述动作，就能得到 480p / 720p、最长 30 秒的带声多镜头片段。适合把静帧、key art、产品图变成动态。
视频 4 个节点 1 个输入 ComfyUI ≥ 0.45.4 ComfyUI 12 KB
下载工作流 JSON 查看官方来源
下载后把文件拖进 ComfyUI 窗口即可打开。
节点构成

ByteDance2ReferenceNodeV2 × 1
LoadImage × 1
SaveVideo × 1
MarkdownNote × 1
官方标注的模型

Seedance 2.5
工作流 JSON

和上面「下载工作流 JSON」是同一份文件。
1{
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          "flags": [],
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                  "shape": 7,
                  "type": "IMAGE",
                  "link": 1
              },
              {
                  "name": "model.reference_images.image_2",
                  "shape": 7,
                  "type": "IMAGE",
                  "link": null
              },
              {
                  "name": "model.reference_videos.video_1",
                  "shape": 7,
                  "type": "VIDEO",
                  "link": null
              },
              {
                  "name": "model.reference_videos.video_2",
                  "shape": 7,
                  "type": "VIDEO",
                  "link": null
              },
              {
                  "name": "model.reference_audios.audio_1",
                  "shape": 7,
                  "type": "AUDIO",
                  "link": null
              },
              {
                  "name": "model.reference_assets.asset_1",
                  "shape": 7,
                  "type": "STRING",
                  "link": null
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          ],
          "outputs": [
              {
                  "name": "VIDEO",
                  "type": "VIDEO",
                  "links": [
                      2
                  ]
              },
              {
                  "name": "draft_task_id",
                  "type": "STRING",
                  "links": null
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          "properties": {
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          "widgets_values": [
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              "[Generation Goal]\nA film-opening hyperspace jump through a wormhole, with a destination. The piece starts on the first frame, then leaves, enters a wormhole interior, and exits through a visible mouth into clean planetary orbit — three distinct shots.\n\n[Event Script]\nAt the start the shot is exactly the first frame: a long, massive capital ship lies diagonally across a sea of golden-hour cloud. The stern and its engines are on the left; the bow points toward the lower right. Smaller escort craft fly with it — some behind the stern on the left, some ahead of the bow on the right — with engine trails already burning.\nShot 1: Hold this angle for only a brief beat. Then the capital ship's stern engines flare on the left, and the entire formation jumps together, the capital ship first: the hull stretches from this place, bow leading toward the lower right, and the capital ship and every escort are drawn into bright streaks and vanish forward. The capital ship must leave. Do not fire engines from the bow. Do not fly backward. Cut at the instant the fleet is gone.\nShot 2: Hard cut to a close follow just off the capital ship's stern and upper deck, as the fleet is already diving into a wormhole mouth. A clearly visible aperture opens ahead; the capital ship, still large and filling the frame, plunges through that mouth into the wormhole interior. Inside, the space is a warped, tunneled wormhole — folded light, stretched walls, a passage with a far exit — not empty sky and not a fog of clouds. Escorts stay as smaller forms off the flanks. Cut before the exit, still inside the wormhole.\nShot 3: Hard cut already looking toward a wormhole mouth opening over a huge planet, with a vast orbital ring waiting ahead. The capital ship bursts out through that visible mouth first, still large and readable, and slams into a hard deceleration in hard vacuum. The escorts exit after it, through the same mouth, and fall back into formation. After exit there is no smoke, no vapor, no lingering fog or cloud around the ships — only hull, engine light, stars, and the planet. End on this clean orbital arrival, the capital ship leading toward the ring, as if the title would hit now. Do not have the ships appear out of empty air, and do not return to the original golden clouds.\n\n[Keep Consistent]\nThe same long capital ship leads every shot: it leaves, it enters the wormhole, and it exits through a visible mouth. The escorts travel with it, never instead of it. Heading in the opening is forward, stern left, bow lower right. Arrival space is hard vacuum: no smoke, mist, or atmospheric exhaust after exit. Pure imagery only: no typography, logos, or subtitles. No dialogue or narration.\nSound: (a low engine bed that breaks into a warp hit, then a heavy deceleration boom) <stern engine flare, a rush inside the wormhole, a snap as the hull exits the mouth> the music cuts off clean on the orbital landing.",
              "720p",
              "16:9",
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              true,
              "auto",
              "mp4",
              true,
              false,
              330530138,
              "randomize",
              false
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          "widgets_values_named": {
              "model": "Seedance 2.5 Flash",
              "model.prompt": "[Generation Goal]\nA film-opening hyperspace jump through a wormhole, with a destination. The piece starts on the first frame, then leaves, enters a wormhole interior, and exits through a visible mouth into clean planetary orbit — three distinct shots.\n\n[Event Script]\nAt the start the shot is exactly the first frame: a long, massive capital ship lies diagonally across a sea of golden-hour cloud. The stern and its engines are on the left; the bow points toward the lower right. Smaller escort craft fly with it — some behind the stern on the left, some ahead of the bow on the right — with engine trails already burning.\nShot 1: Hold this angle for only a brief beat. Then the capital ship's stern engines flare on the left, and the entire formation jumps together, the capital ship first: the hull stretches from this place, bow leading toward the lower right, and the capital ship and every escort are drawn into bright streaks and vanish forward. The capital ship must leave. Do not fire engines from the bow. Do not fly backward. Cut at the instant the fleet is gone.\nShot 2: Hard cut to a close follow just off the capital ship's stern and upper deck, as the fleet is already diving into a wormhole mouth. A clearly visible aperture opens ahead; the capital ship, still large and filling the frame, plunges through that mouth into the wormhole interior. Inside, the space is a warped, tunneled wormhole — folded light, stretched walls, a passage with a far exit — not empty sky and not a fog of clouds. Escorts stay as smaller forms off the flanks. Cut before the exit, still inside the wormhole.\nShot 3: Hard cut already looking toward a wormhole mouth opening over a huge planet, with a vast orbital ring waiting ahead. The capital ship bursts out through that visible mouth first, still large and readable, and slams into a hard deceleration in hard vacuum. The escorts exit after it, through the same mouth, and fall back into formation. After exit there is no smoke, no vapor, no lingering fog or cloud around the ships — only hull, engine light, stars, and the planet. End on this clean orbital arrival, the capital ship leading toward the ring, as if the title would hit now. Do not have the ships appear out of empty air, and do not return to the original golden clouds.\n\n[Keep Consistent]\nThe same long capital ship leads every shot: it leaves, it enters the wormhole, and it exits through a visible mouth. The escorts travel with it, never instead of it. Heading in the opening is forward, stern left, bow lower right. Arrival space is hard vacuum: no smoke, mist, or atmospheric exhaust after exit. Pure imagery only: no typography, logos, or subtitles. No dialogue or narration.\nSound: (a low engine bed that breaks into a warp hit, then a heavy deceleration boom) <stern engine flare, a rush inside the wormhole, a snap as the hull exits the mouth> the music cuts off clean on the orbital landing.",
              "model.resolution": "720p",
              "model.ratio": "16:9",
              "model.duration": 5,
              "model.generate_audio": true,
              "model.task_type": "auto",
              "model.output_format": "mp4",
              "model.auto_downscale": true,
              "model.auto_upscale": false,
              "seed": 330530138,
              "control_after_generate": "randomize",
              "watermark": false
          },
          "color": "#432",
          "bgcolor": "#653"
      },
      {
          "id": 2,
          "type": "LoadImage",
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          "flags": [],
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          "mode": 0,
          "inputs": [],
          "outputs": [
              {
                  "name": "IMAGE",
                  "type": "IMAGE",
                  "links": [
                      1
                  ]
              },
              {
                  "name": "MASK",
                  "type": "MASK",
                  "links": null
              }
          ],
          "properties": {
              "Node name for S&R": "LoadImage"
          },
          "widgets_values": [
              "api_bytedance_seedance2_5_flash_i2v_input.png",
              "image"
          ],
          "widgets_values_named": {
              "image": "api_bytedance_seedance2_5_flash_i2v_input.png",
              "upload": "image"
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      },
      {
          "id": 3,
          "type": "SaveVideo",
          "pos": [
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              -104.50062732793424
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          "flags": [],
          "order": 3,
          "mode": 0,
          "inputs": [
              {
                  "name": "video",
                  "type": "VIDEO",
                  "link": 2
              }
          ],
          "outputs": [
              {
                  "name": "video",
                  "type": "VIDEO",
                  "links": null
              }
          ],
          "properties": [],
          "widgets_values": [
              "video/Seedance2.5_flash_i2v",
              "auto",
              "auto",
              "auto"
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          "widgets_values_named": {
              "filename_prefix": "video/Seedance2.5_flash_i2v",
              "format": "auto",
              "format.codec": "auto",
              "codec": "auto"
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      },
      {
          "id": 4,
          "type": "MarkdownNote",
          "pos": [
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          "size": [
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          "flags": [],
          "order": 1,
          "mode": 0,
          "inputs": [],
          "outputs": [],
          "properties": [],
          "widgets_values": [
              "## Input Asset\n\n- [api_bytedance_seedance2_5_flash_i2v_input.png](https://raw.githubusercontent.com/Comfy-Org/workflow_templates/refs/heads/main/input/api_bytedance_seedance2_5_flash_i2v_input.png)\n\n\n## Report Issue\n\nNote: Please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud updates follow stable releases, so some nightly-supported models may not be available yet.\n\n- Cannot run / runtime errors: [ComfyUI/issues](https://github.com/comfyanonymous/ComfyUI/issues)\n- UI / frontend issues: [ComfyUI_frontend/issues](https://github.com/Comfy-Org/ComfyUI_frontend/issues)\n- Workflow issues: [workflow_templates/issues](https://github.com/Comfy-Org/workflow_templates/issues)\n"
          ],
          "widgets_values_named": {
              "text": "## Input Asset\n\n- [api_bytedance_seedance2_5_flash_i2v_input.png](https://raw.githubusercontent.com/Comfy-Org/workflow_templates/refs/heads/main/input/api_bytedance_seedance2_5_flash_i2v_input.png)\n\n\n## Report Issue\n\nNote: Please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud updates follow stable releases, so some nightly-supported models may not be available yet.\n\n- Cannot run / runtime errors: [ComfyUI/issues](https://github.com/comfyanonymous/ComfyUI/issues)\n- UI / frontend issues: [ComfyUI_frontend/issues](https://github.com/Comfy-Org/ComfyUI_frontend/issues)\n- Workflow issues: [workflow_templates/issues](https://github.com/Comfy-Org/workflow_templates/issues)\n"
          },
          "color": "#222",
          "bgcolor": "#000"
      }
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  "links": [
      [
          2,
          1,
          0,
          3,
          0,
          "VIDEO"
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      [
          1,
          2,
          0,
          1,
          0,
          "IMAGE"
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  "groups": [],
  "config": [],
  "extra": {
      "ds": {
          "scale": 0.6931390630719861,
          "offset": [
              1319.9276024745855,
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          ]
      },
      "frontendVersion": "1.58.5"
  },
  "version": 0.4
250}
Seedance 2.5 Flash：图生视频

节点构成

官方标注的模型

工作流 JSON 复制

工作流 JSON
