From edee33f55ea27a1931475d3ea788fd6e9a81677b Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Tue, 6 Jan 2026 19:13:43 -0800
Subject: [PATCH] Disable comfy kitchen cuda if pytorch cuda less than 13
 (#11681)

---
 comfy/quant_ops.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/comfy/quant_ops.py b/comfy/quant_ops.py
index cd737726f..5a17bc6f5 100644
--- a/comfy/quant_ops.py
+++ b/comfy/quant_ops.py
@@ -13,6 +13,13 @@ try:
         get_layout_class,
     )
     _CK_AVAILABLE = True
+    if torch.version.cuda is None:
+        ck.registry.disable("cuda")
+    else:
+        cuda_version = tuple(map(int, str(torch.version.cuda).split('.')))
+        if cuda_version < (13,):
+            ck.registry.disable("cuda")
+
     ck.registry.disable("triton")
     for k, v in ck.list_backends().items():
         logging.info(f"Found comfy_kitchen backend {k}: {v}")