LTX-2 How to use RuneXX/LTX-2.3-Workflows with LTX-2:
# Install the LTX-2 pipelines
git clone https://github.com/Lightricks/LTX-2.git
cd LTX-2
uv sync --extra natten
# Download weights from this repo
# Substitute filenames from this repo's "Files and versions" if they differ
hf download RuneXX/LTX-2.3-Workflows \
diffusion_models/<distilled-transformer>.safetensors \
text_encoders/gemma4-12b-with-proj-ltx-2.5-bf16.safetensors \
vae/<video-vae>.safetensors \
vae/<audio-vae>.safetensors \
latent_upscale_models/<spatial-upsampler>.safetensors \
latent_upscale_models/<temporal-upsampler>.safetensors \
--local-dir models/LTX-2.3-Workflows
# DFR requires the detailing IC-LoRA (separate repo; strength is fixed at 0.5)
hf download Lightricks/LTX-2.5-22b-IC-LoRA-Pixel-Spatial-Upscaler --local-dir models/LTX-2.5-22b-IC-LoRA-Pixel-Spatial-Upscaler # Distilled LTX-2.5 pipeline (fast)
uv run python -m ltx_pipelines.distilled \
--transformer-path models/LTX-2.3-Workflows/diffusion_models/<distilled-transformer>.safetensors \
--text-encoder-path models/LTX-2.3-Workflows/text_encoders/gemma4-12b-with-proj-ltx-2.5-bf16.safetensors \
--video-vae-path models/LTX-2.3-Workflows/vae/<video-vae>.safetensors \
--audio-vae-path models/LTX-2.3-Workflows/vae/<audio-vae>.safetensors \
--spatial-upsampler-path models/LTX-2.3-Workflows/latent_upscale_models/<spatial-upsampler>.safetensors \
--num-frames 121 \
--prompt "A beautiful sunset over the ocean" \
--output-path output.mp4
# For image-to-video, add: --image path/to/image.jpg 0 0.8 # DFR pipeline (higher detail fidelity; optional temporal 2x/4x)
uv run python -m ltx_pipelines.dfr_pipeline \
--transformer-path models/LTX-2.3-Workflows/diffusion_models/<distilled-transformer>.safetensors \
--text-encoder-path models/LTX-2.3-Workflows/text_encoders/gemma4-12b-with-proj-ltx-2.5-bf16.safetensors \
--video-vae-path models/LTX-2.3-Workflows/vae/<video-vae>.safetensors \
--audio-vae-path models/LTX-2.3-Workflows/vae/<audio-vae>.safetensors \
--spatial-upsampler-path models/LTX-2.3-Workflows/latent_upscale_models/<spatial-upsampler>.safetensors \
--temporal-upsampler-path models/LTX-2.3-Workflows/latent_upscale_models/<temporal-upsampler>.safetensors \
--detailing-lora models/LTX-2.5-22b-IC-LoRA-Pixel-Spatial-Upscaler/ltx-2.5-22b-ic-lora-pixel-spatial-upscaler-x2-1.0.safetensors \
--spatial-upscalings 1 \
--temporal-upscalings 1 \
--height 1088 \
--width 1920 \
--num-frames 121 \
--prompt "A beautiful sunset over the ocean" \
--output-path output.mp4
# For 4K: --spatial-upscalings 2 --width 3840 --height 2176
# For image-to-video, add: --image path/to/image.jpg 0 0.8 
