happyhorse-1-1-i2v

Models/happyhorse-1.1-i2v

Model Code

happyhorse-1.1-i2v

Model overview

Video generation

HappyHorse-1.1-I2V supports image-to-video generation with improved visual quality, motion, and cross-clip consistency. It better understands input images and maintains creative intent, improving skin texture, ID consistency, motion smoothness, text rendering stability, and audio-video synchronization.

Company: AlibabaProvider: Alibaba Cloud

Model capabilities

Input modalityT

Output modalityT

Model experience✓

Function calling-

Structured output-

Web search-

Prefix completion-

Context cache-

Batch inference-

Fine-tuning-

Model pricing

Video generation (720P)$0.1343/s

Video generation (1080P)$0.1791/s

Rate limits and context

Maximum input length-

Context length-

Maximum output length-

Maximum reasoning length1K

RPM300

API reference

EndpointPOST /v1/video/generations

SDKOpenAI-compatible

API code examples

Get API Key

import os
import requests

response = requests.post(
    "https://api.wlrouter.com/v1/video/generations",
    headers={
        "Authorization": f"Bearer {os.environ['WLROUTER_API_KEY']}",
        "Content-Type": "application/json",
    },
    json={
  "model": "happyhorse-1.1-i2v",
  "prompt": "A calm sunrise over a modern city skyline.",
  "duration": 4,
  "resolution": "720p",
  "parameters": {
    "generateAudio": False
  }
}
)
response.raise_for_status()
print(response.json())