ModelsLab/Wan2.1

wan2.1

Image to Video UltraFree for Premium Users LLMs.txt

Endpoint:

Generate high-quality videos from images or text with smooth motion, readable text overlay, and support for 480p/720p resolutions; runs efficiently on consumer GPUs, offers 81–100 frames at 5–24 FPS, and enables versatile video editing and generation tasks.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v6/video/img2video_ultra

API Authentication

Authentication requires a valid API key included in the request. Generate and manage your API keys from your developer dashboard. Include the key in the key parameter for all API requests.

Integration Examples

Production-ready code samples for API integration

{
  "init_image": "https://assets.modelslab.com/generations/91c519f4-20fe-4834-ac47-fe5c39c44b34",
  "model_id": "wan2.1",
  "prompt": "Flirting, flirtatious, charming, seductive ",
  "output_type": "mp4",
  "negative_prompt": "blurry, low quality, distorted, extra limbs, missing limbs, broken fingers, deformed, glitch, artifacts, unrealistic, low resolution, bad anatomy, duplicate, cropped, watermark, text, logo, jpeg artifacts, noisy, oversaturated, underexposed, overexposed, flicker, unstable motion, motion blur, stretched, mutated, out of frame, bad proportions",
  "resolution": "480",
  "num_frames": "89",
  "fps": "16",
  "base64": "false",
  "key": "YOUR_API_KEY"
}

SDKs

Official SDKs

Production-ready SDKs and client libraries for all major programming languages

JavaScript

Python

PHP

API Parameters

Technical specifications for API request parameters.

Field Name	Parameter	Technical Description
Reference Image	`init_image`	Image to upscale/enhance
model_id	`model_id`	Select the model id
Prompt	`prompt`	Text description of the image you want to generate
Output Format	`output_type`	output_type
Negative Prompt	`negative_prompt`	Negative prompt are used for things that do not want in the generated video
Resolution	`resolution`	Video resolution
Number of Frames	`num_frames`	Number of frames (fps=16, frames=81 = 5 seconds)
fps	`fps`	Frames per second
base64	`base64`	Indicates whether the init_image is provided in base64 format. Defaults to false. ( true or false)