Video Generation

HiAPI supports multiple video generation models for text-to-video and image-to-video tasks.

Available Models

Model	Provider	Mode	Best For
HappyHorse 1.0	Alibaba	Text to video	Short-form, ad storyboards, social media clips
Kling 3.0	Kuaishou	Text to video	Cinematic motion and action-heavy shots
Seedance 1.0 Pro	ByteDance	Text to video	Cost-aware batches and early prototypes
Seedance 1.5 Pro	ByteDance	Text to video	Narrative clips with native audio
Seedance 2.0	ByteDance	Text or image to video	Unified video workflows
Wan 2.7 T2V	Alibaba	Text to video	General short-form videos
Wan 2.7 I2V	Alibaba	Image to video	Animating still images

For live prices, duration examples, and resolution multipliers, use HiAPI Pricing.

Text-to-Video

cURL

curl -X POST https://api.hiapi.ai/v1/videos \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan2.7-t2v",
    "prompt": "A Shiba Inu chasing butterflies under cherry blossoms",
    "size": "1920*1080",
    "seconds": "5"
  }'

Python

import requests

response = requests.post(
    "https://api.hiapi.ai/v1/videos",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "model": "wan2.7-t2v",
        "prompt": "A Shiba Inu chasing butterflies under cherry blossoms",
        "size": "1920*1080",
        "seconds": "5"
    }
)

video_id = response.json()["id"]
print(f"Task created: {video_id}")

Image-to-Video

Animate a still image into a video using Wan 2.7 I2V:

curl -X POST https://api.hiapi.ai/v1/videos \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan2.7-i2v",
    "prompt": "The scene comes alive with gentle wind",
    "input_reference": "https://example.com/photo.jpg",
    "seconds": "5"
  }'

Async Task Pattern

Video generation is asynchronous. The API returns a top-level id — poll for the result:

import time
import requests

# 1. Submit task
response = requests.post(
    "https://api.hiapi.ai/v1/videos",
    headers={"Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
    json={"model": "wan2.7-t2v", "prompt": "sunset timelapse", "seconds": "5"}
)
video_id = response.json()["id"]

# 2. Poll for result
while True:
    result = requests.get(
        f"https://api.hiapi.ai/v1/videos/{video_id}",
        headers={"Authorization": "Bearer YOUR_API_KEY"}
    ).json()
    if result["status"] == "completed":
        print("Video URL:", result.get("metadata", {}).get("url"))
        break
    time.sleep(5)

Video Parameters

Parameter	Values	Models
seconds	3, 5, 8, 10, 12, 15	Wan 2.7, Seedance
size	1920*1080, 1080*1920, 1280*720	Wan 2.7
seconds	3, 5, 8, 10, 15	Kling