From 2dcd375fa00b857b8504bfd645bd21be11af50b2 Mon Sep 17 00:00:00 2001
From: kijai <40791699+kijai@users.noreply.github.com>
Date: Fri, 29 May 2026 19:07:42 +0300
Subject: [PATCH] Fix background removal mask output shape

Should be B H W like everything else
---
 comfy/bg_removal_model.py | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/comfy/bg_removal_model.py b/comfy/bg_removal_model.py
index 6dec65e63..c772c5f6a 100644
--- a/comfy/bg_removal_model.py
+++ b/comfy/bg_removal_model.py
@@ -55,12 +55,7 @@ class BackgroundRemovalModel():
         out = torch.nn.functional.interpolate(out, size=(H, W), mode="bicubic", antialias=False)
 
         mask = out.sigmoid().to(device=comfy.model_management.intermediate_device(), dtype=comfy.model_management.intermediate_dtype())
-        if mask.ndim == 3:
-            mask = mask.unsqueeze(0)
-        if mask.shape[1] != 1:
-            mask = mask.movedim(-1, 1)
-
-        return mask
+        return mask.squeeze(1)  # (B, 1, H, W) -> (B, H, W)
 
 
 def load_background_removal_model(sd):