API Hop

Seedance 2.0 首尾帧视频 API

在 API Hop 使用 Seedance 2.0 首尾帧视频 API,提供必填首帧与可选尾帧的图片 URL 或素材 ID,用文字描述起止画面之间的动作与镜头过渡。

Seedance 2.0 在线首尾帧工具

模型设置

登录后可使用账户余额运行。

价格与计费

Seedance 2.0 请求与示例

由 Seedance 2.0 于 2026-10-03 生成。单次样例不代表质量或延迟保证。

查看提示词

Premium beverage product film, one continuous five-second shot. A single tall clear glass filled with sparkling orange citrus drink and clear ice cubes stands on a pale gray stone pedestal, a small lemon wedge on the left and one green leaf on the right, clean muted turquoise studio background. Soft daylight from upper left glints through the glass. The camera makes a slow, subtle clockwise orbit while keeping the entire glass centered. Tiny bubbles rise naturally and condensation glistens. Preserve the glass shape and orange drink color throughout. No cuts, no hands, no text, no logos, no music, no speech. Silent video.

{
  "model": "seedance-2.0",
  "duration": 5,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": false,
  "prompt": "Premium beverage product film, one continuous five-second shot. A single tall clear glass filled with sparkling orange citrus drink and clear ice cubes stands on a pale gray stone pedestal, a small lemon wedge on the left and one green leaf on the right, clean muted turquoise studio background. Soft daylight from upper left glints through the glass. The camera makes a slow, subtle clockwise orbit while keeping the entire glass centered. Tiny bubbles rise naturally and condensation glistens. Preserve the glass shape and orange drink color throughout. No cuts, no hands, no text, no logos, no music, no speech. Silent video.",
  "metadata": {
    "content": []
  }
}

由 Seedance 2.0 于 2026-10-03 生成。单次样例不代表质量或延迟保证。

查看提示词

Create one continuous five-second product shot from the supplied first frame to the supplied last frame. Keep the camera locked, with exactly the same clear glass, ice cubes, stone pedestal, lemon wedge, green leaf, turquoise background and soft upper-left lighting. A thin stream of orange citrus drink pours naturally from above the top edge into the glass. The liquid level gradually rises from the first-frame level to the last-frame level; the ice floats upward slightly, bubbles and ripples behave naturally. The pouring stream stops before the end and the final image settles into the supplied last-frame composition. No cuts, no new objects, no hands, no text, no logos. Silent video, no music or speech.

{
  "model": "seedance-2.0",
  "duration": 5,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": false,
  "prompt": "Create one continuous five-second product shot from the supplied first frame to the supplied last frame. Keep the camera locked, with exactly the same clear glass, ice cubes, stone pedestal, lemon wedge, green leaf, turquoise background and soft upper-left lighting. A thin stream of orange citrus drink pours naturally from above the top edge into the glass. The liquid level gradually rises from the first-frame level to the last-frame level; the ice floats upward slightly, bubbles and ripples behave naturally. The pouring stream stops before the end and the final image settles into the supplied last-frame composition. No cuts, no new objects, no hands, no text, no logos. Silent video, no music or speech.",
  "metadata": {
    "content": [
      {
        "type": "image_url",
        "role": "first_frame",
        "image_url": {
          "url": "https://api.apihop.ai/generated/364459846248173568/0.png"
        }
      },
      {
        "type": "image_url",
        "role": "last_frame",
        "image_url": {
          "url": "https://api.apihop.ai/generated/364460494205222912/0.png"
        }
      }
    ]
  }
}

由 Seedance 2.0 于 2026-10-03 生成。单次样例不代表质量或延迟保证。

查看提示词

Use the supplied reference image to preserve the exact clear highball glass, orange citrus drink, ice, stone pedestal, lemon wedge and green leaf. Use the reference video only for its slow clockwise camera orbit and soft lighting rhythm. Create a fresh five-second premium beverage product shot in the same muted turquoise studio setting. Begin with the whole glass centered, make a small smooth clockwise orbit and finish slightly closer while retaining the entire glass. Keep the liquid level and glass shape consistent with the image; tiny bubbles rise naturally. One continuous shot, no cuts, no added objects, no text, no logos. Silent video, no music or speech.

{
  "model": "seedance-2.0",
  "duration": 5,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": false,
  "prompt": "Use the supplied reference image to preserve the exact clear highball glass, orange citrus drink, ice, stone pedestal, lemon wedge and green leaf. Use the reference video only for its slow clockwise camera orbit and soft lighting rhythm. Create a fresh five-second premium beverage product shot in the same muted turquoise studio setting. Begin with the whole glass centered, make a small smooth clockwise orbit and finish slightly closer while retaining the entire glass. Keep the liquid level and glass shape consistent with the image; tiny bubbles rise naturally. One continuous shot, no cuts, no added objects, no text, no logos. Silent video, no music or speech.",
  "metadata": {
    "content": [
      {
        "type": "image_url",
        "role": "reference_image",
        "image_url": {
          "url": "https://api.apihop.ai/generated/364460494205222912/0.png"
        }
      },
      {
        "type": "video_url",
        "role": "reference_video",
        "video_url": {
          "url": "https://api.apihop.ai/examples/seedance-2-0/2026-10-03/364460440891424768-text-to-video.mp4"
        }
      }
    ]
  }
}

仅展示请求与输入样例;此请求未附实测输出。

查看提示词

Premium beverage product film, one continuous five-second shot. A single tall clear glass filled with sparkling orange citrus drink and clear ice cubes stands on a pale gray stone pedestal, a small lemon wedge on the left and one green leaf on the right, clean muted turquoise studio background. Soft daylight from upper left glints through the glass. The camera makes a slow, subtle clockwise orbit while keeping the entire glass centered. Tiny bubbles rise naturally and condensation glistens. Preserve the glass shape and orange drink color throughout. No cuts, no hands, no text, no logos, no music, no speech. Silent video.

{
  "model": "seedance-2.0",
  "duration": 5,
  "resolution": "720p",
  "aspectRatio": "16:9",
  "generateAudio": false,
  "prompt": "Premium beverage product film, one continuous five-second shot. A single tall clear glass filled with sparkling orange citrus drink and clear ice cubes stands on a pale gray stone pedestal, a small lemon wedge on the left and one green leaf on the right, clean muted turquoise studio background. Soft daylight from upper left glints through the glass. The camera makes a slow, subtle clockwise orbit while keeping the entire glass centered. Tiny bubbles rise naturally and condensation glistens. Preserve the glass shape and orange drink color throughout. No cuts, no hands, no text, no logos, no music, no speech. Silent video.",
  "metadata": {
    "content": [
      {
        "type": "image_url",
        "role": "first_frame",
        "image_url": {
          "url": "https://api.apihop.ai/generated/364459846248173568/0.png"
        }
      }
    ]
  }
}

Seedance 2.0 API 价格与计费

480p · 包含视频参考

官方价格

完成 Token
$4.0000 /M

API Hop 当前价格 降低 5%

完成 Token
$3.8000 /M

480p · 无视频参考

官方价格

完成 Token
$6.5714 /M

API Hop 当前价格 降低 5%

完成 Token
$6.2429 /M

720p · 包含视频参考

官方价格

完成 Token
$4.0000 /M

API Hop 当前价格 降低 5%

完成 Token
$3.8000 /M

720p · 无视频参考

官方价格

完成 Token
$6.5714 /M

API Hop 当前价格 降低 5%

完成 Token
$6.2429 /M

1080p · 包含视频参考

官方价格

完成 Token
$4.4286 /M

API Hop 当前价格 降低 5%

完成 Token
$4.2071 /M

1080p · 无视频参考

官方价格

完成 Token
$7.2857 /M

API Hop 当前价格 降低 5%

完成 Token
$6.9214 /M

4k · 包含视频参考

官方价格

完成 Token
$2.2857 /M

API Hop 当前价格 降低 5%

完成 Token
$2.1714 /M

4k · 无视频参考

官方价格

完成 Token
$3.7143 /M

API Hop 当前价格 降低 5%

完成 Token
$3.5286 /M

参考价格,尚未独立核验。比较成本前,请核对供应商当前价格、计费单位及适用条件。

Seedance 2.0 首尾帧

在 API Hop 使用 Seedance 2.0 首尾帧视频 API,提供必填首帧与可选尾帧的图片 URL 或素材 ID,用文字描述起止画面之间的动作与镜头过渡。

首尾帧:输入与参数

选择主体、视角和环境能够合理连接的图片。帧图片用于指导视频,不代表生成结果会逐像素保留原图。

首帧是必填起点

提供可访问的 HTTP(S) 图片 URL,或已有的 asset:// 图片标识。清楚的起始画面可以确定主体与取景范围。只提供首帧时,描述主体或镜头应向哪里移动,以及哪些特征应保持可辨认。

尾帧用于表达目标构图

结尾构图重要时可以添加尾帧,例如更近的产品视角;仅用运动描述即可表达目标时,可以留空。场景、主体身份或视角变化很大时需仔细检查,两张图片并不保证能形成连贯过渡。

描述两张画面之间如何变化

写明是主体移动、镜头移动,还是两者同时移动。说明需要保留的细节、预期运动,以及是否保持一个连续镜头。过渡应能在所选 4-15 秒整数时长内合理完成。

输出支持 480p、720p、1080p、4k,以及 16:9、9:16、1:1、4:3、3:4、21:9、adaptive 七种比例。按输入构图选择比例;Seedance 2.0 并非所有首尾帧请求都必须使用 adaptive。生成音频仍是独立的可选设置。

音视频联合生成与输出检查

Seedance 2.0 可生成与画面配合的声音,适合在短镜头中探索环境声、动作音效与对白。生成音频是独立输出设置;是否提供参考音频取决于输入模式,不能把模型支持多模态理解为每个页面都接受所有素材。

首尾帧:检查生成结果

视频质量需要结合真实输入和目标用途检查。本节按可观察的成片标准评估,不把演示效果或单个样例当作画质、延迟或业务成功率承诺。

起止构图与画幅适配

对照目标画面检查生成结果两端的主体位置、裁切和透视。输出比例应适合输入构图,取景不兼容可能导致突然变化。把图片视为引导,而不是逐像素一致的保证。

中间几何与过渡合理性

沿整个过渡检查轮廓改变、表面不稳定、遮挡错误和突然的镜头跳变。两个看起来合理的边界画面并不足够,中间动作也要能在所选时长内合理完成。

沿着整个过渡检查连续性

除了两个目标构图,还要检查开头、中间各帧和结尾。留意主体形状、背景几何、遮挡关系和镜头跳变。任务成功状态不代表画面连续性已经通过检查。

起始画面与可选结束构图适合本模式。如果需要参考视觉风格、视频中的运动或音频素材,请使用多模态模式,分别说明每份参考的作用。

记录完整耗时、返工与实际费用

用同一组任务记录从提交到结果可用的时间、需要修改的次数和账户费用。区分队列等待、任务完成与人工验收;先找到可接受的质量和预算,再扩大生成数量,不根据一次等待推断稳定服务速度。

API 请求与任务跟踪

将当前模式的请求提交至 POST /v1/video/seedance,再用返回的任务 ID 查询 GET /v1/jobs/{jobId}。等待 COMPLETED 且含有输出后再使用结果;查询已有任务不需要重新提交生成。

Seedance 2.0 首尾帧常见问题

这里可以直接上传本地图片吗?

此视频表单接受公网 HTTP(S) 素材 URL 或已有 asset:// 标识,不会将本地文件上传到提供商素材库。本地文件路径和图片 data URI 不能代替受支持的素材地址。

首尾画面会逐像素保持原样吗?

不能这样假定。帧图片指导目标构图,但细节与运动仍需人工检查。接受结果前,请同时检查首尾画面与中间视频,而不是只看两端。

Seedance 2.0 首尾帧模式必须提供尾帧吗?

不必。本页面需要一张首帧,可以再添加一张尾帧。只有首帧时,用提示词描述运动与结束状态;结尾需要特定构图时再提供尾帧。

这里可以混用首尾帧、视频和音频参考吗?

本页面只接受 first_frame 与 last_frame 图片,生成音频仍可单独开启。需要图片、视频或音频参考输入时,请切换到多模态参考,不要把这些素材放进边界帧角色。

Seedance 2.0 四个页面使用不同的 model 参数吗?

不是。四种输入模式均使用 model: seedance-2.0,通过 POST /v1/video/seedance 提交异步视频任务,再用 GET /v1/jobs/{jobId} 查询。不要把页面模式名、显示名称或其他模型 ID 当作接口中的 model。

Seedance 2.0 支持哪些时长与输出设置?

当前 API Hop 接口使用 4-15 秒整数时长,默认 5 秒,支持 480p、720p、1080p、4k,以及 16:9、9:16、1:1、4:3、3:4、21:9、adaptive 比例。生成音频单独设置;不使用 -1 自动时长,也不要自行添加 seed、negativePrompt 或其他未列出的参数。

遇到鉴权、余额或生成错误怎么办?

先核对 Bearer 鉴权、账户余额、seedance-2.0 模型权限和当前模式所需输入,再检查素材地址是否可访问。保留完整错误与任务 ID,并区分提交失败、等待中和任务失败;不要只看一个数字错误码就判断原因。

Seedance 2.0 生成费用如何确认?

先在本页价格区核对分辨率、时长与是否包含视频输入对应的价格,再结合账户记录确认实际费用。价格暂不可用不代表免费;不要把其他版本或文本模型的单价用于推算本次视频任务。

其他视频模式

相关视频 API