This workflow takes an Image and an audio track as input to generate a video. Important NoticeUpdate ComfyUI and KJ Nodes. A lot of the code has been updated in the last few days.Include --reserve-vram 1 in your launch option to avoid OOM.If you have no lipsync, try ensuring that your audio track is in stereo format. fix suggested by @thomasdimitri563 Models to download (LTX2.3)Place in models/diffusion_models<a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/diffusion_models/ltx-2.3-22b-dev_transformer_only_fp8_scaled.safetensors">https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/diffusion_models/ltx-2.3-22b-dev_transformer_only_fp8_scaled.safetensors</a>Place in models/loras<a target="_blank" rel="ugc" href="https://huggingface.co/Lightricks/LTX-2.3/blob/main/ltx-2.3-22b-distilled-lora-384.safetensors">https://huggingface.co/Lightricks/LTX-2.3/blob/main/ltx-2.3-22b-distilled-lora-384.safetensors</a>Place in models/text_encoders<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors">https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors</a><a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/text_encoders/ltx-2.3_text_projection_bf16.safetensors">https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/text_encoders/ltx-2.3_text_projection_bf16.safetensors</a>Place in models/vae<a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/vae/LTX23_audio_vae_bf16.safetensors">https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/vae/LTX23_audio_vae_bf16.safetensors</a><a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/vae/LTX23_video_vae_bf16.safetensors">https://huggingface.co/Kijai/LTX2.3_comfy/blob/main/vae/LTX23_video_vae_bf16.safetensors</a>Models to download (V3)Place in models/diffusion_models<a target="_blank" rel="ugc" href="https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled-fp8.safetensors">https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled-fp8.safetensors</a>Place in models/text_encoders<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors">https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors</a>Place in models/loras<a target="_blank" rel="ugc" href="https://huggingface.co/Lightricks/LTX-2-19b-IC-LoRA-Detailer/resolve/main/ltx-2-19b-ic-lora-detailer.safetensors">https://huggingface.co/Lightricks/LTX-2-19b-IC-LoRA-Detailer/resolve/main/ltx-2-19b-ic-lora-detailer.safetensors</a><a target="_blank" rel="ugc" href="https://huggingface.co/Lightricks/LTX-2-19b-LoRA-Camera-Control-Static/resolve/main/ltx-2-19b-lora-camera-control-static.safetensors">https://huggingface.co/Lightricks/LTX-2-19b-LoRA-Camera-Control-Static/resolve/main/ltx-2-19b-lora-camera-control-static.safetensors</a>

LTX-2 Image Audio to Video

Changed to FP8 distilled model.Set resolution at 1920 x 1088.Changed to Manual Sigmas. Changed to Native Video Save, to prevent saving 3 different files for final video.

Files with SHA256: ab14f6b0b78905b5bfcdc8d25498de6dcedf1f28baa0ef755eda425e9d640183