PixVerse 5.5 transition: AI Image-to-Video with Sound & Morphing

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/pixverse/pixverse/v5.5/transition \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Scene slowly transition, a cat jump to the cake",
    "first_image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7255/media-files/input-1-1.png",
    "end_image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7255/media-files/input-1-2.png"
  }'

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",
    "first_image_url",
    "end_image_url"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "",
      "type": "string",
      "default": "Scene slowly transition, a cat jump to the cake"
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "The aspect ratio of the generated video.",
      "type": "string",
      "enum": [
        "16:9",
        "4:3",
        "1:1",
        "3:4",
        "9:16"
      ],
      "default": "16:9"
    },
    "resolution": {
      "title": "Resolution",
      "description": "The resolution of the generated video.",
      "type": "string",
      "enum": [
        "360p",
        "540p",
        "720p",
        "1080p"
      ],
      "default": "720p"
    },
    "duration": {
      "title": "Duration",
      "description": "The duration of the generated video in seconds. 1080p videos are limited to 5 or 8 seconds. Longer durations cost more.",
      "type": "integer",
      "enum": [
        5,
        8,
        10
      ],
      "default": 5
    },
    "negative_prompt": {
      "title": "Negative Prompt",
      "description": "",
      "type": "string",
      "default": ""
    },
    "style": {
      "title": "Style",
      "description": "The style of the generated video.",
      "type": "string",
      "enum": [
        "anime",
        "3d_animation",
        "clay",
        "comic",
        "cyberpunk"
      ],
      "default": "anime"
    },
    "seed": {
      "title": "Seed",
      "description": "",
      "type": "integer",
      "default": 0
    },
    "generate_audio_switch": {
      "title": "Generate Audio",
      "description": "Enable audio generation (BGM, SFX, dialogue).",
      "type": "boolean",
      "default": false
    },
    "thinking_type": {
      "title": "Prompt Optimization",
      "description": "Prompt optimization mode: 'enabled' to optimize, 'disabled' to turn off, 'auto' for model decision.",
      "type": "string",
      "enum": [
        "enabled",
        "disabled",
        "auto"
      ],
      "default": "auto"
    },
    "first_image_url": {
      "title": "Start Image",
      "description": "URL of the image to use as the first frame.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7255/media-files/input-1-1.png"
    },
    "end_image_url": {
      "title": "End Image",
      "description": "URL of the image to use as the last frame.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7255/media-files/input-1-2.png"
    }
  }
}