ltx2.3-image-base-sdnq-int4

LTX 2.3 Image Base (SDNQ uint4/int4)

This repository contains an SDNQ uint4/int4 base image-only checkpoint derived from the base LTX 2.3 model by Lightricks.

It is a pruned image-only execution package: the model is organized for the LTX 2.3 image generation path and does not expose the original video/audio generation flows. The underlying model family and weights remain derived from LTX 2.3, and this package continues to inherit the original LTX Video 2 Open Source License.

What Changed

• Packaged for Diffusers-based image-only inference.
• Pruned to remove components that are not needed by the image execution path.
• Intended for the LTX2ImagePipeline and LTX2ImageImg2ImgPipeline implementations used by the DEVAIEXP image runners.
• Not a new training run and not a dataset modification.

Variant

This variant uses SDNQ quantization for the base image transformer, prepared as the low-memory base release.

• Lowest-size / low-memory base variant prepared during local testing.
• Useful when the base model is needed but memory pressure prevents running the bf16 package comfortably.
• May trade some fine detail and composition fidelity for lower storage and runtime memory requirements.

Usage

For installation, environment setup, model path expectations, and runnable text-to-image / image-to-image examples, see:

https://github.com/DEVAIEXP/ltx2-image-diffusers

That repository uses a temporary Diffusers branch with the LTX 2.3 image pipelines until equivalent support is available upstream.

License

These weights are derived from Lightricks/LTX-2.3 and are released under the LTX Video 2 Open Source License:

https://huggingface.co/Lightricks/LTX-2.3/blob/main/LICENSE

Please review the original LTX 2.3 model card and license before redistribution or commercial use.