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⚡ Unlock FlashVSR Video Upscale in ComfyUI: A Quick Guide + Workflows + Official Video
🕑 Added 2025-12-21 21:05:00 +0000 UTCHi friends! 👋
This short guide is for those of you who want to get FlashVSR running inside of ComfyUI. I know getting the environment right can be a pain, so I have a little holiday gift for you to make it easier. 🎄
🎁 Holiday Gift: My Custom Installer
Until Jan 3rd, I am giving away my automated installer software for FREE! After that, it goes back to being for Paid Members only. It handles all the tricky setup for you.
🚀 Get the Installer Here:
https://www.patreon.com/posts/update-21th-dec-146207704
🛠️ The Manual Way
If you prefer to set things up yourself, here is how you can get FlashVSR and Triton running manually.
Prerequisites:
Install ComfyUI: https://www.comfy.org/
Or grab the Portable Version: Download ComfyUI_windows_portable_nvidia.7z
(If using portable) Extract with 7-Zip: https://7-zip.org/
📖 How to install "Triton" for FlashVSR
To run FlashVSR, we need a specific library called Triton. The standard version is for Linux, so we need to manually swap it for a Windows-compatible version.
Step 1: Identify your Installation Type
Look at your ComfyUI folder structure to decide which set of commands to use:
Type A: Portable / Embedded
You downloaded the .7z file named ComfyUI_windows_portable.
You have a folder inside named python_embedded.
Type B: Manual / Venv (or my Installers)
You installed using git clone or used my previous installers.
Inside your ComfyUI folder, you see a folder named venv
📂 Type A: Portable (Embedded) Instructions
Open your ComfyUI_windows_portable folder (the one containing run_nvidia_gpu.bat).
Click the address bar at the top of the file explorer, type cmd, and press Enter.
Paste the following commands one by one:
cmd
Uninstall the standard triton if its installed.
🔴IN SOME VERSIONS OF COMFYUI THERE IS A TYPO IN THE FOLDER IS CALLED EMBEDED WITH ONE MISSING (D).🔴
.\python_embedded\python.exe -m pip uninstall -y triton
Install the specific Windows wheel
.\python_embedded\python.exe -m pip install -U "triton-windows<3.5"
💻 Type B: Manual (Venv) Instructions
Open your main ComfyUI folder.
Ensure you see the venv folder inside.
Click the address bar, type cmd, and press Enter.
Paste the following block:
cmd
Activate the virtual environment
call venv\Scripts\activate
Uninstall the standard triton
python -m pip uninstall -y triton
Install the specific Windows wheel
python -m pip install -U "triton-windows<3.5"
💡 Why are we doing this?
The standard triton package on PyPi is compiled for Linux. If installed on Windows, it causes errors and crashes. The command triton-windows installs a specific pre-compiled wheel created by the community. We need this specific version of Triton in order to run FlashVSR!
Enjoy the update and happy creating! 🎨✨
