<h3 id="wan-2.2-svi-pro-2-i2v-for-12gb-vram">WAN 2.2 / SVI Pro 2 / I2V for 12GB VRAM</h3>V2.1 - small fix, I accidentally removed the required SVI Low LoRa in Stage 2.Obviously an easy fix but for beginners it might be easy to miss.<ul><li>check my Aerith video (3rd video in the list) at the top. (Download Video then drag n' drop it into comfyui) it's a perfect example video of NAG negative prompts working correctly. Note the settings changing per stages. Sometimes nag_scale 8 has to be used with weighted prompts for it to work correctly. This is using all 7 stages and a good example of the many things you can do at CFG 1.</li></ul>V2.0 - Adds about 30 seconds to generation time, due to NAG and Inject Latent Noise nodes.SamplerCustomWithNAG replaced the old Custom Samplers. If you do not need Negative prompts and want faster gen times, stick with v1.31.There is a lot of new stuff to this, so expect some trial and error.Added CFG High and Low to the settings.Shift is still 9 for better prompting but if you want to retain more face detail use Shift 5. It's a good trade off though.Upscale Model:<a target="_blank" rel="ugc" href="https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.1/RealESRGAN_x2plus.pth">RealESRGAN_x2plus.pth</a>please report any BUGS!Pro Tip!Mix and Match High/Low Checkpoints:For example: Try using Smooth Mix High and Dasiwa's Low. I got some interesting results!Inject Latent Noise<ul><li>Reduces prompt bleeding/carry over to next stage.</li></ul>SamplerCustomWithNAG<ul><li>Open CMD: navigate to ComfyUI/custom_nodes folder.</li><li>Run: git clone <a target="_blank" rel="ugc" href="https://github.com/BigStationW/ComfyUI-NAG">https://github.com/BigStationW/ComfyUI-NAG</a></li><li>If it fails to install correctly (node not showing up):File 1: ComfyUI/custom_nodes/ComfyUI-NAG/chroma/<a target="_blank" rel="ugc" href="http://layers.py">layers.py</a>Line 5:Change:from comfy.ldm.chroma.layers import DoubleStreamBlock, SingleStreamBlockTo:from comfy.ldm.flux.layers import DoubleStreamBlock, SingleStreamBlockFile 2: ComfyUI/custom_nodes/ComfyUI-NAG/chroma/<a target="_blank" rel="ugc" href="http://model.py">model.py</a>Lines 9–14:Change to:from comfy.ldm.flux.layers import DoubleStreamBlock, SingleStreamBlockfrom comfy.ldm.flux.layers import timestep_embeddingfrom comfy.ldm.flux.layers import (DoubleStreamBlock,SingleStreamBlock,)from comfy.ldm.chroma.model import Chromaafter, close comfyui (don't restart).</li></ul><hr />v1.31 - QoL Update and change to Shift Values.576x832, This is the resolution I've had the most success with.<ul><li>overlap frames added from subgraph. Recommended to not touch unless you understand what you are changing.</li><li>Added Preview Animation and Control Random Seed to each sampler instead of a subgraph in the beginning, this way you can preview each clip as they finish, and let the generation continue endlessly if you're doing batches. Just remember to change it from Fixed -&gt; Randomize. Also, don't forget to change it back to Fixed when happy with generation, otherwise it will just start at Sample 1 again.</li><li>Also, use Shift 9.0, it seems much better than 5.0. Don't forget when using ANY video LoRa, especially High LoRas, start them at 0.5-0.6, the low can usually stay safe at 1.0. This will avoid a lot jittery, jelly animations.</li><li>If you ever think you lost a seed... just drag the video into Comfyui workspace, and it will always have the seed number it used.</li><li>If you dont want endless 'preview animation' -&gt; right-click Preview Window and select 'Reload Node', this can be done during generating as well. Or, you can CTRL+B before generation to disable it. This is a QoL update.</li></ul><hr />v1.2 - Please update to this version.Seed per Sample - fixed.<ol><li>Seed arrangement were out of order. (I'm not sure how this slipped through.)</li><li>Added labels on seed per sample.</li><li>Tested each seed on each clip and changed seed to make sure its working correctly.</li></ol>Added a preview image after Resize Image so you can check and compare your image to the original.For 832x1216 Images use 576x832 resolution if you're using the crop option on resize.Modified version of <a target="_blank" rel="ugc" href="https://civarchive.com/models/2280989/svi-pro-20-for-low-vram-8gb">[SVI Pro 2.0 for Low VRAM (8GB)]</a>And <a target="_blank" rel="ugc" href="https://github.com/user-attachments/files/24359648/wan22_SVI_Pro_native_example_KJ.json">[Wan2.2 SVI Pro Example KJ]</a><ul><li>7 Stage Sample Setup, with each Stage having their own Loras, combined with Sage Attention Cuda for faster speeds.</li><li>Can save each stage clip if needed.</li><li>Final Output w/ Upscaler + RIFE for smooth 60FPS.</li><li>Fast Group Bypasser - for quick access.</li></ul>### Required Models &amp; LoRAsGGUF Main Models:* <a target="_blank" rel="ugc" href="https://civarchive.com/models/2190659/dasiwa-wan-22-i2v-14b-tastysin-v8-or-lightspeed-or-gguf">[DaSiWa-Wan 2.2 I2V]</a> or* <a target="_blank" rel="ugc" href="https://civarchive.com/models/1995784?modelVersionId=2323420">[Smooth Mix Version]</a> or* <a target="_blank" rel="ugc" href="https://civarchive.com/models/2053259?modelVersionId=2540892">[Enhanced NSFW Camera Prompt Adherence]</a>&gt; Note: Use a suitable quantization (e.g., Q4 or Q5) based on your available VRAM. I highly recommend DaSiWa-Wan high/low Models, as the Lightning Loras are BAKED in, leaving you only with SVI Loras being required.SVI PRO LoRAs (Wan2.2-I2V-A14B):* Both Required<a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/WanVideo_comfy/blob/main/LoRAs/Stable-Video-Infinity/v2.0/SVI_v2_PRO_Wan2.2-I2V-A14B_HIGH_lora_rank_128_fp16.safetensors">[SVI PRO - HIGH (Rank 128)]</a><a target="_blank" rel="ugc" href="https://huggingface.co/Kijai/WanVideo_comfy/blob/main/LoRAs/Stable-Video-Infinity/v2.0/SVI_v2_PRO_Wan2.2-I2V-A14B_LOW_lora_rank_128_fp16.safetensors">[SVI PRO - LOW (Rank 128)]</a>Text Encoders:<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.2_ComfyUI_Repackaged/blob/main/split_files/text_encoders/umt5_xxl_fp8_e4m3fn_scaled.safetensors">[WAN UMT5]</a> or<a target="_blank" rel="ugc" href="https://huggingface.co/NSFW-API/NSFW-Wan-UMT5-XXL/blob/main/nsfw_wan_umt5-xxl_fp8_scaled.safetensors">[NSFW WAN UMT5]</a>VAE:<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/blob/main/split_files/vae/wan_2.1_vae.safetensors">[Wan 2.1 VAE]</a><h3 id="the-following-is-for-speed-boosts-for-nvidia-cards-if-its-already-working-then-skip-this!">The following is for Speed Boosts for nVidia Cards - If its already working then skip this!</h3>Patch Sage Attention Node (sageattn_qk_int8_pv_fp16_cuda) + Model Patch Torch Settings Node (Faster Speed Times):Prompt executed in 136.56 seconds &lt;- Sage Attention Disable/FP16 Accumulation = Disable/Allow Compile = FalsePrompt executed in 104.38 seconds &lt;- Sage Attention Enabled/FP16 Accumulation = Enabled/Allow Compile = FalsePrompt executed in 96.26 seconds &lt;-- Sage Attention Enabled/FP16 Accumulation = True/Allow Compile = TrueWith this setup you can save a massive 40+ seconds just for one Stage!If Sage Attention is not working/crashing comfyui then do the following or use (CTRL+B to bypass the nodes but I highly recommend getting it working for massive speed boost):<ul><li>The following is for Comfyui_windows_portable, do not do it this way if you are using a different setup!<ul><li>Step 1 — Check your PyTorch + CUDA version</li></ul></li></ul>Open CMD in your ComfyUI Portable folder (SAME directory as run_nvidia_gpu.bat) and run the following command:.\python_embeded\python.exe -c "import torch; print(torch.__version__, torch.version.cuda)"output = 2.9.1+cu130 13.0check Python embeded version:.\python_embeded\python.exe -Voutput = Python 3.13.9Which Means:Python: 3.13 (embeded)PyTorch: 2.9.1CUDA: 13.0Warning! If you are unsure how to proceed with the following steps, then paste your error code into Grok/ChatGPTfor a more detailed analysis.Pick the wheel that matches your Python + PyTorch + CUDA output from Step 1.That means the correct SageAttention wheel for your setup would be something like this:sageattention-2.2.0.post3+cu130torch2.9.0-cp313-cp313-win_amd64.whldownload the correct wheel for your setup from:<a target="_blank" rel="ugc" href="https://huggingface.co/Wildminder/AI-windows-whl/tree/main/">[List of Wheels]</a>It matches Python 3.13 (cp313-cp313), PyTorch 2.9.x, and CUDA 13.0.The slight difference in patch version (2.9.1 vs 2.9.0) is fine — this wheel works with PyTorch 2.9.x.<ul><li>Step 2 — Install Wheel (make sure the file is in \ComfyUI_windows_portable, same directory as run_nvidia_gpu.bat)</li></ul>Open CMD in your ComfyUI Portable folder and run with the correct wheel file (example below):.\python_embeded\python.exe -m pip install "sageattention-2.2.0.post3+cu130torch2.9.0-cp313-cp313-win_amd64.whl"<ul><li>Step 3 — How to check if it works:</li></ul>Open CMD in your ComfyUI Portable folder and run:.\python_embeded\python.exe -c "import sageattention; print('SageAttention import successful!'); print(dir(sageattention))"You should see:SageAttention import successful!['__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', '_fused', '_qattn_sm80', '_qattn_sm89', '_qattn_sm90', 'core', 'quant', 'sageattn', 'sageattn_qk_int8_pv_fp16_cuda', 'sageattn_qk_int8_pv_fp16_triton', 'sageattn_qk_int8_pv_fp8_cuda', 'sageattn_qk_int8_pv_fp8_cuda_sm90', 'sageattn_varlen', 'triton']<ul><li>Step 4 — confirm if triton attention mode is available:</li></ul>Open CMD in your ComfyUI Portable folder and run:.\python_embeded\python.exe -c "import sageattention; print('SageAttention import successful!'); print('Triton mode available:' , hasattr(sageattention, 'sageattn_qk_int8_pv_fp16_triton'))"You should see:SageAttention import successful!Triton mode available: Trueif any triton errors run this command:.\python_embeded\python.exe -m pip install tritonStep 5 - now you should be able to use "sageattn_qk_int8_pv_fp16_cuda" with Patch Sage Attention + Model patch Torch Settings Nodes properly.

Wan 2.2 - SVI2Pro w/ NAG - I2V for 12GB VRAM (Different Loras Per Stage)(Optimized for Speed)

added SamplerCustomWithNAG node for Negative Prompting.added many options to each sample stage.

Files with SHA256: ea793474f2a7bc16df39ef0f04ef508b78042786108614b4b41bb80d818de7fe