Merge 8f4e58d29f into a9ab2b62da

2026-08-16 01:40:26 +08:00 · 2026-08-16 01:40:26 +08:00 · 38e1e37170
parent a9ab2b62da 8f4e58d29f
commit 38e1e37170
1 changed files with 8 additions and 0 deletions
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@ -1983,6 +1983,14 @@ def supports_nvfp4_compute(device=None):
    if props.major < 10:
        return False

+    # cuBLAS FP4 matmul kernels require CUDA 13+, see #11864
+    try:
+        cuda_version_major = int(torch.version.cuda.split(".")[0])
+    except (AttributeError, ValueError):
+        return False
+    if cuda_version_major < 13:
+        return False
+
    return True

 def supports_mxfp8_compute(device=None):