将 Gen 4 Turbo 与 Comfy Router 配合使用

通过 Comfy Router 调用 runway/gen4_turbo：端点、请求形状以及 Router 返回的响应。

runway/gen4_turbo 的 API 参考文档，由 Comfy Router 提供，模型来自 Runway。

输入： 图像, 文本 · 输出： 视频

快速开始

在你的 Comfy 工作区中创建一个密钥，并将其导出为 COMFY_API_KEY。Python 和 TypeScript 代码片段使用 Comfy SDK（pip install comfy-sdk 和 npm install @comfyorg/sdk）；cURL 代码片段是通过原始 HTTP 发起的相同调用。

模型 ID： runway/gen4_turbo

端点： POST https://api.comfy.org/v2/models/runway/gen4_turbo

[tab] 等待结果 ``python Python theme={null} from comfy_sdk import Comfy # Reads COMFY_API_KEY from the environment. # The SDK automatically creates an idempotency key and reuses it for automatic retries. with Comfy() as client: result = client.models.run( "runway/gen4_turbo", { "duration": 5, "promptImage": "data:image/png;base64,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", "ratio": "1280:720", "seed": 42, }, ) print(result) ` `typescript TypeScript theme={null} import { comfy } from "@comfyorg/sdk"; // Reads COMFY_API_KEY from the environment. // The SDK automatically creates an idempotency key and reuses it for automatic retries. const { data } = await comfy.models.run("runway/gen4_turbo", { duration: 5, promptImage: "data:image/png;base64,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", ratio: "1280:720", seed: 42, }); console.log(data); ` `bash cURL theme={null} curl https://api.comfy.org/v2/models/runway/gen4_turbo \ -H "X-API-Key: $COMFY_API_KEY" \ -H "Idempotency-Key: $(uuidgen)" \ -H "Content-Type: application/json" \ -d "{\"duration\": 5, \"promptImage\": \"data:image/png;base64,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\", \"ratio\": \"1280:720\", \"seed\": 42}" ``

[tab] 入队并稍后收集将相同的请求体发送到 POST https://api.comfy.org/v2/models/runway/gen4_turbo/requests。运行被受理后，Router 会立即返回 201 和 request_id；结果就绪后，可以从本进程或其他进程收集。队列投递详细介绍了状态、取消和收集的流程。 ``python Python theme={null} import asyncio from comfy_sdk import AsyncComfy # Reads COMFY_API_KEY from the environment. # Each submit() call mints its own Idempotency-Key and reuses it for automatic retries. async def main(): async with AsyncComfy() as client: handle = await client.models.submit( "runway/gen4_turbo", { "duration": 5, "promptImage": "data:image/png;base64,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", "ratio": "1280:720", "seed": 42, }, ) print("request_id:", handle.request_id) # with the model ID, all another process needs # Poll until the request completes, waiting the Retry-After the server names. async for update in handle.iter_events(): print(update.status, update.queue_position) # The provider's own payload, the same value models.run() returns. # A request that failed or was cancelled raises the typed Router error here. result = await handle.get() print(result) asyncio.run(main()) ` `typescript TypeScript theme={null} import { comfy } from "@comfyorg/sdk"; // Reads COMFY_API_KEY from the environment. // Each submit() call mints its own Idempotency-Key and reuses it for automatic retries. const handle = await comfy.models.submit("runway/gen4_turbo", { duration: 5, promptImage: "data:image/png;base64,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", ratio: "1280:720", seed: 42, }); console.log("requestId:", handle.requestId); // with the model ID, all another process needs // Poll until the request completes, waiting the Retry-After the server names. for await (const update of handle.events()) { console.log(update.status, update.queuePosition); } // The same result models.run() returns. A request that failed or was cancelled rejects here. const result = await handle.get(); console.log(result.data); ` `bash cURL theme={null} # 1. Submit. Router answers 201 with request_id, status_url, response_url and cancel_url. curl https://api.comfy.org/v2/models/runway/gen4_turbo/requests \ -H "X-API-Key: $COMFY_API_KEY" \ -H "Idempotency-Key: $(uuidgen)" \ -H "Content-Type: application/json" \ -d "{\"duration\": 5, \"promptImage\": \"data:image/png;base64,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\", \"ratio\": \"1280:720\", \"seed\": 42}" # 2. Poll until status is COMPLETED, waiting the Retry-After seconds each response names. REQUEST_ID="<request_id from the 201 body>" curl -i https://api.comfy.org/v2/models/runway/gen4_turbo/requests/$REQUEST_ID/status \ -H "X-API-Key: $COMFY_API_KEY" # 3. Collect. 200 with the model's native output, 202 with the status body while it is still running. curl https://api.comfy.org/v2/models/runway/gen4_turbo/requests/$REQUEST_ID \ -H "X-API-Key: $COMFY_API_KEY" ``

Schema

输入

duration integer required

可能的值：2、3、4、5、6、7、8、9、10

model string

用于生成的模型。在 Comfy Router 路由 POST /v2/models/runway/{model} 上，该字段由路径提供，因此不得发送；在 v1 的 POST /proxy/runway/image_to_video 路由上，该字段为必填，且被限制为 RunwayModelEnum（gen4_turbo）。

promptImage string | object[] required

用于视频生成的图像。可以是单个 URI，也可以是带有位置信息的图像对象数组。

promptText string

用于生成的文本提示词

ratio string required

可能的值：1280:720、720:1280、1104:832、832:1104、960:960、1584:672、1280:768、768:1280

seed integer required

用于生成的随机种子

范围：0 到 4294967295

格式：int64

该文档由 Router 在 GET /v2/models/runway/gen4_turbo/openapi.json 提供的 Schema 生成，Router 在请求到达提供商之前校验调用时使用的正是同一份文档。

输出

createdAt string (date-time) required

任务创建时间戳

格式：date-time

id string required

任务 ID

output string[]

已完成生成的资源 URL。对于 runway/gen4_turbo 和 runway/aleph2，每个元素都是一个视频 URL。任务成功终止后即会出现；该列表就是结果本身。

progress number

介于 0 和 1 之间的浮点值，表示任务的进度。仅在状态为 RUNNING 时可用。

范围：0 到 1

格式：float

status string required

Runway 任务的可能状态。

可能的值：SUCCEEDED、RUNNING、FAILED、PENDING、CANCELLED、THROTTLED

示例

输入

{
  "duration": 5,
  "promptImage": "data:image/png;base64,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",
  "ratio": "1280:720",
  "seed": 42
}

输出

{
  "createdAt": "2027-01-01T00:00:00Z",
  "id": "5f7c1b28-9a03-4e61-8d2f-1b2c3d4e5f60",
  "output": [
    "https://example.invalid/runway/gen4_turbo/generated.mp4"
  ],
  "status": "SUCCEEDED"
}

发布前须知

SDK 会生成 Idempotency-Key 并在自动重试中复用它。手动重试时，请复用原始 key。Router 最长可保持连接 10 分钟。

请求失败时，Router 会发送 X-Comfy-Error-Type 响应头说明原因。422 表示 Router 在调用提供商之前就拒绝了输入，413 表示请求体超出了 Router 可接受的大小。已生成的资源请及时下载，因为结果 URL 会过期。

上文任何字段描述中提到的尺寸限制，都是提供商对该字段自身的限定，引自提供商的规范。Router 会对整个请求体另行设置上限，base64 编码的媒体内容也计入其中：参见请求体大小。

本页记录的是通过 Comfy Router 调用的某一个合作伙伴模型。同一个 comfy-sdk / @comfyorg/sdk 包还提供第二个客户端，用于在 Comfy Cloud 上运行完整的 ComfyUI 工作流图：Comfy(api_key=...) / new Comfy({ apiKey })，并带有 client.workflows、client.assets 和 client.jobs。请参阅 Comfy SDKs。

[card] 请求头身份验证、幂等性、请求 ID、错误分类、重试节奏、消费限额。

[card] 使用 Router API 模型发现、验证错误、重试与计费。

[card] 限制 Router 目前不支持的功能，以及替代方案。