From 21e842508733809354a7b04944b2995ed1169370 Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Wed, 7 Jan 2026 18:07:26 -0800
Subject: [PATCH] Add warning for old pytorch. (#11718)

---
 comfy/quant_ops.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/comfy/quant_ops.py b/comfy/quant_ops.py
index 5a17bc6f5..8324be42a 100644
--- a/comfy/quant_ops.py
+++ b/comfy/quant_ops.py
@@ -19,6 +19,7 @@ try:
         cuda_version = tuple(map(int, str(torch.version.cuda).split('.')))
         if cuda_version < (13,):
             ck.registry.disable("cuda")
+            logging.warning("WARNING: You need pytorch with cu130 or higher to use optimized CUDA operations.")
 
     ck.registry.disable("triton")
     for k, v in ck.list_backends().items():