LTX 2.3 ID LoRA CelebVHQ 3K

LTX-2.3 variant -- This checkpoint is trained on the newer LTX-2.3 (22B) base model with 3,000 training steps. For the original LTX-2 (19B) version, see ID-LoRA-CelebVHQ.

ID-LoRA (Identity-Driven In-Context LoRA) jointly generates a subject's appearance and voice in a single model, letting a text prompt, a reference image, and a short audio clip govern both modalities together. Built on top of LTX-2.3, it is the first method to personalize visual appearance and voice within a single generative pass.

Details

Usage

This checkpoint requires the ID-LoRA-2.3 packages. Clone the official repository, switch the workspace to the LTX-2.3 packages, and download models:

git clone https://github.com/ID-LoRA/ID-LoRA.git && cd ID-LoRA

# Point workspace at LTX-2.3 packages (edit pyproject.toml):
#   [tool.uv.workspace]
#   members = ["ID-LoRA-2.3/packages/*"]

uv sync --frozen
bash ID-LoRA-2.3/scripts/download_models.sh

Two-Stage Inference (Recommended)

Generates at 512x512 then upscales to 1024x1024 with a distilled LoRA refinement pass.

python ID-LoRA-2.3/scripts/inference_two_stage.py \
  --lora-path models/id-lora-celebvhq/lora_weights.safetensors \
  --reference-audio examples/reference.wav \
  --first-frame examples/first_frame.png \
  --prompt "[VISUAL]: A close-up of a person speaking. [SPEECH]: Hello world. [SOUNDS]: Clear speech." \
  --output-dir outputs/two_stage \
  --quantize

Two-Stage HQ (New in v2.3)

Higher-quality variant using the Res2s sampler and rescaling guidance. Uses fewer steps (15 vs 30) but produces higher fidelity results.

python ID-LoRA-2.3/scripts/inference_two_stage_hq.py \
  --lora-path models/id-lora-celebvhq/lora_weights.safetensors \
  --reference-audio examples/reference.wav \
  --first-frame examples/first_frame.png \
  --prompt "[VISUAL]: A close-up of a person speaking. [SPEECH]: Hello world. [SOUNDS]: Clear speech." \
  --output-dir outputs/two_stage_hq \
  --quantize

One-Stage (Faster, Lower VRAM)

Generates at a single resolution without upscaling.

python ID-LoRA-2.3/scripts/inference_one_stage.py \
  --lora-path models/id-lora-celebvhq/lora_weights.safetensors \
  --reference-audio examples/reference.wav \
  --first-frame examples/first_frame.png \
  --prompt "[VISUAL]: A close-up of a person speaking. [SPEECH]: Hello world. [SOUNDS]: Clear speech." \
  --output-dir outputs/one_stage \
  --quantize

Files

• lora_weights.safetensors -- LoRA adapter weights (~1.1 GB)
• training_config.yaml -- Training configuration used to produce this checkpoint

Citation

@misc{dahan2026idloraidentitydrivenaudiovideopersonalization,
  title     = {ID-LoRA: Identity-Driven Audio-Video Personalization with In-Context LoRA},
  author    = {Aviad Dahan and Moran Yanuka and Noa Kraicer and Lior Wolf and Raja Giryes},
  year      = {2026},
  eprint    = {2603.10256},
  archivePrefix = {arXiv},
  primaryClass  = {cs.SD},
  url       = {https://arxiv.org/abs/2603.10256}
}