Python API

The LTX-2 codebase is a monorepo with several packages. From model definition in ‘ltx-core’ to pipelines in ‘ltx-pipelines’ and training capabilities in ‘ltx-trainer’.

The codebase has been tested with Python >=3.12, CUDA version >12.7, and supports PyTorch ~= 2.7.

Python API Quick Start

For developers who want direct Python integration or custom workflows.

Installation

$
# Clone the repository
$
git clone https://github.com/Lightricks/LTX-2.git
$
cd LTX-2
$
$
# Set up the environment
$
uv sync --frozen
$
source .venv/bin/activate

Download Models

$
# Download the distilled  model (recommended for speed)
$
huggingface-cli download Lightricks/LTX-2 \
>
  --include "ltx-2-19b-distilled.safetensors" \
>
  --local-dir ComfyUI/models/checkpoints/LTX-Video

A full list of available models can be found in the LTX-2 GitHub repo