Video Gen Client

One async Python client for multiple video-generation providers: Seedance, Kling, MiniMax/Hailuo and Wan.

Supported Models

Supported Models

Provider	Version	API Model ID	Notes
Seedance (ByteDance)	2.5	doubao-seedance-2.5	30s one-take, native audio
Seedance	2.0	doubao-seedance-2-0-260128	Full 2.0, multimodal input
Seedance	2.0 Mini	doubao-seedance-2-0-mini-260615	Budget tier, 480p/720p, 4–15s
Seedance	2.0 Fast	doubao-seedance-2-0-fast-260128	Faster 2.0, lower quality
Kling (Kuaishou)	3.0 / 3.0 Omni	kling-v3 / kling-v3-omni	Flagship, multi-shot, native audio
Kling	2.6	kling-v2-6	First with synced audio + video
Kling	2.5 Turbo	kling-v2-5-turbo	1080p, cheap for high volume
Kling	2.1	kling-v2-1-master	Cinematic control, better semantics
MiniMax / Hailuo	H3	MiniMax-H3	4K, 60fps, 30s, native audio
MiniMax	2.3	MiniMax-Hailuo-2.3	1080p, T2V + I2V
MiniMax	2.3 Fast	MiniMax-Hailuo-2.3-Fast	Faster 2.3, I2V only
Wan (Alibaba)	3.0	wan3.0	All-in-one, 30s, up to 1080p
Wan	2.7	wan2.7-t2v / wan2.7-i2v / wan2.7-r2v	Specialized models
Wan	2.6	wan2.6-t2v / wan2.6-i2v	Multi-shot, longer clips
Wan	2.5	wan2.5-t2v-preview	1080p, audio support

Install

git clone https://github.com/letorig/video-generator-client
cd video-generator-client
python -m venv .venv
# Windows:
.venv\\Scripts\\activate
# macOS/Linux:
source .venv/bin/activate
pip install -e ".[web]"

Copy .env.example to .env and add the credentials for the providers you use.

CLI

Output is saved to the output folder.

video-gen --help
video-gen providers
video-gen models wan
video-gen generate wan --prompt "A snowy forest at dawn" --model 2.1 --duration 5
video-gen status wan TASK_ID
video-gen serve

Web server options:

video-gen serve --host 127.0.0.1 --port 8000
video-gen serve --host 0.0.0.0 --port 9000 --reload

Web UI

The web interface is bundled directly into the Python package; there is no npm, Node.js or frontend build step. FastAPI serves the HTML and exposes JSON endpoints for provider discovery, generation, task polling and MP4 download.

The UI provides:

• provider/model selection
• text-to-video and image-to-video input
• negative prompt
• duration, aspect ratio and resolution
• live task status polling
• video preview and MP4 download
• in-memory task history for the current server session

Project layout

unified-video-gen/
├── src/video_gen/
│   ├── client.py
│   ├── cli.py
│   ├── web.py
│   ├── catalog.py
│   ├── static/index.html
│   ├── providers/
│   └── utils/
├── examples/
├── tests/
├── mcp_server/
├── .env.example
├── .gitignore
├── LICENSE
└── pyproject.toml

Important

Provider APIs and model IDs change independently of this SDK. Treat the provider adapters as integration code that may need updates when a provider changes its API.

License

MIT.