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HappyHorse 1.0: Cinematic 1080p AI Video Generation Model | RunComfy

happyhorse/happyhorse-1.0/text-to-video

HappyHorse 1.0 is live on RunComfy for text-to-video generation. Use natural-language prompts to generate 3–15s videos in 720P or 1080P across five aspect ratios.

modelApiDoc_tableOfContents

modelApiDoc_nav1GetStartedmodelApiDoc_nav2AuthenticationmodelApiDoc_nav3ApiReferencemodelApiDoc_navSubmitRequestmodelApiDoc_navMonitorStatusmodelApiDoc_navRetrieveResultsmodelApiDoc_navCancelRequestmodelApiDoc_nav4FileInputsmodelApiDoc_navHostedFilemodelApiDoc_nav5SchemamodelApiDoc_navInputSchemamodelApiDoc_navOutputSchema

modelApiDoc_h2GetStarted

modelApiDoc_getStartedBeforeModelhappyhorse/happyhorse-1.0/text-to-videomodelApiDoc_getStartedAfterModel modelApiDoc_getStartedMid modelApiDoc_schemaLinkmodelApiDoc_getStartedAfterSchema

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/happyhorse/happyhorse-1.0/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Wide shot. A lone astronaut in a dusty orange pressure suit with dark blue-gray harness straps and black boots skis across a vast lunar plain, leaving two long parallel tracks in the gray regolith behind. The astronaut is mid-stride, poles planted, pushing forward in 1/6th gravity, each push sending the body drifting slightly upward before settling back. Fine dust hangs in a low haze along the ski tracks. Behind and above, a crescent Earth sits just over the soft curve of the lunar horizon, blue-white atmospheric glow against total black sky. Raw sunlight, crushed shadows, no fill. 8K photorealistic. No logos on the suit."
  }'

modelApiDoc_h2Authentication

modelApiDoc_authP1 YOUR_API_TOKEN modelApiDoc_authP2 modelApiDoc_profilemodelApiDoc_authP3 Authorization modelApiDoc_authP4 Authorization: Bearer $YOUR_API_TOKENmodelApiDoc_authP5

modelApiDoc_h3ApiReference

modelApiDoc_h3SubmitRequest

modelApiDoc_submitBody

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/happyhorse/happyhorse-1.0/text-to-video \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "Wide shot. A lone astronaut in a dusty orange pressure suit with dark blue-gray harness straps and black boots skis across a vast lunar plain, leaving two long parallel tracks in the gray regolith behind. The astronaut is mid-stride, poles planted, pushing forward in 1/6th gravity, each push sending the body drifting slightly upward before settling back. Fine dust hangs in a low haze along the ski tracks. Behind and above, a crescent Earth sits just over the soft curve of the lunar horizon, blue-white atmospheric glow against total black sky. Raw sunlight, crushed shadows, no fill. 8K photorealistic. No logos on the suit."
  }'

modelApiDoc_h3MonitorStatus

modelApiDoc_monitorBody

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

modelApiDoc_h3RetrieveResults

modelApiDoc_retrieveBody

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

modelApiDoc_h3CancelRequest

modelApiDoc_cancelBody

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

modelApiDoc_h2FileInputs

modelApiDoc_h3HostedFile

modelApiDoc_hostedFileBody

modelApiDoc_h2Schema

modelApiDoc_h3InputSchema

{
  "type": "object",
  "title": "modelApiDoc_navInputSchema",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "Describe the scene, subject motion, camera, lighting, and any audio you want implied in the generated video. Max 2500 characters.",
      "type": "string",
      "default": "Wide shot. A lone astronaut in a dusty orange pressure suit with dark blue-gray harness straps and black boots skis across a vast lunar plain, leaving two long parallel tracks in the gray regolith behind. The astronaut is mid-stride, poles planted, pushing forward in 1/6th gravity, each push sending the body drifting slightly upward before settling back. Fine dust hangs in a low haze along the ski tracks. Behind and above, a crescent Earth sits just over the soft curve of the lunar horizon, blue-white atmospheric glow against total black sky. Raw sunlight, crushed shadows, no fill. 8K photorealistic. No logos on the suit.",
      "maxLength": 2500
    },
    "aspect_ratio": {
      "title": "Aspect Ratio (W:H)",
      "description": "Output video aspect ratio.",
      "type": "string",
      "enum": [
        "16:9",
        "9:16",
        "1:1",
        "4:3",
        "3:4"
      ],
      "default": "16:9"
    },
    "resolution": {
      "title": "Resolution",
      "description": "Output video resolution. HappyHorse supports 720P or 1080P.",
      "type": "string",
      "enum": [
        "720P",
        "1080P"
      ],
      "default": "1080P"
    },
    "duration": {
      "title": "Duration",
      "description": "Output video duration in seconds. Allowed values: 3–15.",
      "type": "integer",
      "enum": [
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15
      ],
      "default": 5
    },
    "seed": {
      "title": "Seed",
      "description": "Optional seed for reproducible generations. Use 0 to let the provider randomize.",
      "type": "integer",
      "minimum": 0,
      "maximum": 2147483647,
      "default": 0
    },
    "watermark": {
      "title": "Watermark",
      "description": "Whether to keep the provider watermark on the generated video.",
      "type": "boolean",
      "default": false
    }
  }
}

modelApiDoc_h3OutputSchema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "modelApiDoc_outDescImage"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "modelApiDoc_outDescVideo"
      },
      "images": {
        "type": "array",
        "description": "modelApiDoc_outDescImages",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "modelApiDoc_outDescVideos",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}
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