diff --git a/invokeai/app/invocations/conditioning.py b/invokeai/app/invocations/conditioning.py
deleted file mode 100644
index 9579d80009..0000000000
--- a/invokeai/app/invocations/conditioning.py
+++ /dev/null
@@ -1,41 +0,0 @@
-import numpy as np
-import torch
-from PIL.Image import Image
-
-from invokeai.app.invocations.baseinvocation import BaseInvocation, InputField, InvocationContext, invocation
-from invokeai.app.invocations.primitives import ConditioningField, ConditioningOutput, ImageField
-
-
-@invocation(
-    "add_conditioning_mask",
-    title="Add Conditioning Mask",
-    tags=["conditioning"],
-    category="conditioning",
-    version="1.0.0",
-)
-class AddConditioningMaskInvocation(BaseInvocation):
-    """Add a mask to an existing conditioning tensor."""
-
-    conditioning: ConditioningField = InputField(description="The conditioning tensor to add a mask to.")
-    image: ImageField = InputField(
-        description="A mask image to add to the conditioning tensor. Only the first channel of the image is used. "
-        "Pixels <128 are excluded from the mask, pixels >=128 are included in the mask."
-    )
-
-    @staticmethod
-    def convert_image_to_mask(image: Image) -> torch.Tensor:
-        """Convert a PIL image to a uint8 mask tensor."""
-        np_image = np.array(image)
-        torch_image = torch.from_numpy(np_image[0, :, :])
-        mask = torch_image >= 128
-        return mask.to(dtype=torch.uint8)
-
-    def invoke(self, context: InvocationContext) -> ConditioningOutput:
-        image = context.services.images.get_pil_image(self.image.image_name)
-        mask = self.convert_image_to_mask(image)
-
-        mask_name = f"{context.graph_execution_state_id}__{self.id}_conditioning_mask"
-        context.services.latents.save(mask_name, mask)
-
-        self.conditioning.mask_name = mask_name
-        return ConditioningOutput(conditioning=self.conditioning)
diff --git a/invokeai/app/invocations/mask.py b/invokeai/app/invocations/mask.py
new file mode 100644
index 0000000000..e892a766c1
--- /dev/null
+++ b/invokeai/app/invocations/mask.py
@@ -0,0 +1,40 @@
+import torch
+
+from invokeai.app.invocations.baseinvocation import (
+    BaseInvocation,
+    InvocationContext,
+    invocation,
+)
+from invokeai.app.invocations.fields import InputField, MaskField, WithMetadata
+from invokeai.app.invocations.primitives import MaskOutput
+
+
+@invocation(
+    "rectangle_mask",
+    title="Create Rectangle Mask",
+    tags=["conditioning"],
+    category="conditioning",
+    version="1.0.0",
+)
+class RectangleMaskInvocation(BaseInvocation, WithMetadata):
+    """Create a rectangular mask."""
+
+    height: int = InputField(description="The height of the entire mask.")
+    width: int = InputField(description="The width of the entire mask.")
+    y_top: int = InputField(description="The top y-coordinate of the rectangular masked region (inclusive).")
+    x_left: int = InputField(description="The left x-coordinate of the rectangular masked region (inclusive).")
+    rectangle_height: int = InputField(description="The height of the rectangular masked region.")
+    rectangle_width: int = InputField(description="The width of the rectangular masked region.")
+
+    def invoke(self, context: InvocationContext) -> MaskOutput:
+        mask = torch.zeros((1, self.height, self.width), dtype=torch.bool)
+        mask[
+            :, self.y_top : self.y_top + self.rectangle_height, self.x_left : self.x_left + self.rectangle_width
+        ] = True
+
+        mask_name = context.tensors.save(mask)
+        return MaskOutput(
+            mask=MaskField(mask_name=mask_name),
+            width=self.width,
+            height=self.height,
+        )
diff --git a/invokeai/app/invocations/primitives.py b/invokeai/app/invocations/primitives.py
index 6a8e4e4531..25930f7d00 100644
--- a/invokeai/app/invocations/primitives.py
+++ b/invokeai/app/invocations/primitives.py
@@ -14,6 +14,7 @@ from invokeai.app.invocations.fields import (
     Input,
     InputField,
     LatentsField,
+    MaskField,
     OutputField,
     UIComponent,
 )
@@ -405,9 +406,19 @@ class ColorInvocation(BaseInvocation):
 
 # endregion
 
+
 # region Conditioning
 
 
+@invocation_output("mask_output")
+class MaskOutput(BaseInvocationOutput):
+    """A torch mask tensor."""
+
+    mask: MaskField = OutputField(description="The mask.")
+    width: int = OutputField(description="The width of the mask in pixels.")
+    height: int = OutputField(description="The height of the mask in pixels.")
+
+
 @invocation_output("conditioning_output")
 class ConditioningOutput(BaseInvocationOutput):
     """Base class for nodes that output a single conditioning tensor"""