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RunComfy

SEEDVR2: One-Step Video Restoration and Upscaling

community/seedvr2/upscale/video

SEEDVR2 takes a low-quality or blurry video as input and outputs a sharp, high-quality restored version in one step, powered by ByteDance Seed’s Diffusion Transformer models.

1. Get started

Use RunComfy's API to run community/seedvr2/upscale/video. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/community/seedvr2/upscale/video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "33_video": "https://playgrounds-storage-public.runcomfy.net/comfyui-defaults/40d6a9ba-3f5d-4c0c-9638-98ac077bddeb/input/RunComfy_examples_1238_2.mp4"
  }'

2. Authentication

Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/community/seedvr2/upscale/video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "33_video": "https://playgrounds-storage-public.runcomfy.net/comfyui-defaults/40d6a9ba-3f5d-4c0c-9638-98ac077bddeb/input/RunComfy_examples_1238_2.mp4"
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id, in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

Provide a publicly reachable HTTPS URL. Ensure the host allows server‑side fetches (no login/cookies required) and isn't rate‑limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre‑signed URLs for private assets.

5. Schema

Input schema

{
  "type": "object",
  "title": "Input",
  "required": [
    "33_video"
  ],
  "properties": {
    "33_video": {
      "title": "Video",
      "description": "",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/comfyui-defaults/40d6a9ba-3f5d-4c0c-9638-98ac077bddeb/input/RunComfy_examples_1238_2.mp4"
    },
    "35_new_resolution": {
      "title": "Resolution - Width (px)",
      "description": "",
      "type": "integer",
      "minimum": 720,
      "maximum": 1440,
      "default": 1080
    },
    "33_frame_load_cap": {
      "title": "Number of Frames",
      "description": "",
      "type": "integer",
      "minimum": 32,
      "maximum": 160,
      "default": 120
    },
    "34_frame_rate": {
      "title": "Frames Per Second",
      "description": "",
      "type": "integer",
      "minimum": 12,
      "maximum": 30,
      "default": 24
    },
    "35_seed": {
      "title": "Seed",
      "description": "",
      "type": "integer",
      "minimum": 1,
      "maximum": 5000,
      "default": 1245
    },
    "35_cfg_scale": {
      "title": "Guidance Scale",
      "description": "Set 1.01–1.5 for subtle enhancement; 1.5–2.0 for more aggressive restoration.",
      "type": "float",
      "minimum": 1.01,
      "maximum": 2,
      "default": 1.01
    },
    "35_batch_size": {
      "title": "Batch size",
      "description": "Larger batches may slightly alter per-frame detail and temporal consistency, use 1 for the most repeatable, stable results.",
      "type": "integer",
      "minimum": 1,
      "maximum": 4,
      "default": 1
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": { "type": "string", "format": "uri" }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": { "type": "string", "format": "uri" }
      }
    }
  }
}