FLUX 3 Extend Video: Continuación de clip de vídeo a vídeo en modelos y API | RunComfy

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/blackforestlabs/flux-3/extend-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "The camera keeps tracking as she slows near a wooden overlook, turns toward the lens and smiles. Soft ocean spray and distant gulls continue.",
    "video_url": "https://playgrounds-storage-public.runcomfy.net/tools/7400/media-files/input.mp4"
  }'

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

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

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

{
  "type": "object",
  "title": "modelApiDoc_navInputSchema",
  "required": [
    "prompt",
    "video_url"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Texto que describe cómo continúa el vídeo a partir de los últimos fotogramas del clip de origen.",
      "type": "string",
      "default": "The camera keeps tracking as she slows near a wooden overlook, turns toward the lens and smiles. Soft ocean spray and distant gulls continue."
    },
    "video_url": {
      "title": "URL del vídeo",
      "description": "URL del vídeo de entrada. MP4, menos de 50 MB y menos de 15 segundos.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7400/media-files/input.mp4"
    },
    "aspect_ratio": {
      "title": "Relación de aspecto",
      "description": "Relación de aspecto del vídeo generado. auto deja que el modelo elija.",
      "type": "string",
      "enum": [
        "auto",
        "21:9",
        "2:1",
        "16:9",
        "4:3",
        "1:1",
        "3:4",
        "9:16"
      ],
      "default": "auto"
    },
    "resolution": {
      "title": "Resolución",
      "description": "Resolución del vídeo generado.",
      "type": "string",
      "enum": [
        "720p",
        "1080p"
      ],
      "default": "720p"
    },
    "duration": {
      "title": "Duración",
      "description": "Duración del vídeo generado en segundos. auto deja que el modelo elija.",
      "type": "string",
      "enum": [
        "auto",
        "5",
        "6",
        "7",
        "8",
        "9",
        "10",
        "11",
        "12",
        "13",
        "14",
        "15",
        "16",
        "17",
        "18",
        "19",
        "20"
      ],
      "default": "auto"
    },
    "generate_audio": {
      "title": "Generar audio",
      "description": "Si se debe generar audio sincronizado para el vídeo.",
      "type": "boolean",
      "default": true
    },
    "safety_tolerance": {
      "title": "Tolerancia de seguridad",
      "description": "Nivel de tolerancia de seguridad del vídeo generado. 0 es el más estricto y 4 el más permisivo.",
      "type": "integer",
      "minimum": 0,
      "maximum": 4,
      "default": 2
    }
  }
}