diff --git a/src/marqo_commons/model_registry/model_properties_data/open_clip_properties.py b/src/marqo_commons/model_registry/model_properties_data/open_clip_properties.py
index c5bc50f..f29e1a4 100644
--- a/src/marqo_commons/model_registry/model_properties_data/open_clip_properties.py
+++ b/src/marqo_commons/model_registry/model_properties_data/open_clip_properties.py
@@ -22,6 +22,8 @@ class OpenClipModelProperties(ModelProperties):
     modality: List[Modality] = [Modality.text, Modality.image]
     type: ModelType = ModelType.open_clip
     pretrained: Optional[str] = None
+    imagePreprocessor: Optional[str] = None # if unspecified Marqo will default to "OpenCLIP"
+    size: Optional[int] = None # image_size for image preprocessor
     notes: str = ""
 
     @classmethod
@@ -368,6 +370,8 @@ def get_all_model_properties_objects(cls) -> Dict[str, "OpenClipModelProperties"
                 dimensions=1152,
                 notes="open_clip model: ViT-SO400M-14-SigLIP-384/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "open_clip/ViT-H-14-378-quickgelu/dfn5b": OpenClipModelProperties(
                 name="open_clip/ViT-H-14-378-quickgelu/dfn5b",
@@ -380,6 +384,8 @@ def get_all_model_properties_objects(cls) -> Dict[str, "OpenClipModelProperties"
                 dimensions=1024,
                 notes="open_clip model: ViT-L-16-SigLIP-384/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "open_clip/ViT-H-14-quickgelu/dfn5b": OpenClipModelProperties(
                 name="open_clip/ViT-H-14-quickgelu/dfn5b",
@@ -392,30 +398,40 @@ def get_all_model_properties_objects(cls) -> Dict[str, "OpenClipModelProperties"
                 dimensions=1024,
                 notes="open_clip model: ViT-L-16-SigLIP-256/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=256,
             ),
             "open_clip/ViT-B-16-SigLIP-512/webli": OpenClipModelProperties(
                 name="open_clip/ViT-B-16-SigLIP-512/webli",
                 dimensions=768,
                 notes="open_clip model: ViT-B-16-SigLIP-512/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=512,
             ),
             "open_clip/ViT-B-16-SigLIP-384/webli": OpenClipModelProperties(
                 name="open_clip/ViT-B-16-SigLIP-384/webli",
                 dimensions=768,
                 notes="open_clip model: ViT-B-16-SigLIP-384/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "open_clip/ViT-B-16-SigLIP-256/webli": OpenClipModelProperties(
                 name="open_clip/ViT-B-16-SigLIP-256/webli",
                 dimensions=768,
                 notes="open_clip model: ViT-B-16-SigLIP-256/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=256,
             ),
             "open_clip/ViT-B-16-SigLIP/webli": OpenClipModelProperties(
                 name="open_clip/ViT-B-16-SigLIP/webli",
                 dimensions=768,
                 notes="open_clip model: ViT-B-16-SigLIP/webli",
                 pretrained="webli",
+                imagePreprocessor="SigLIP",
+                size=224,
             ),
             "open_clip/ViT-L-14-quickgelu/dfn2b": OpenClipModelProperties(
                 name="open_clip/ViT-L-14-quickgelu/dfn2b",
@@ -468,26 +484,36 @@ def get_all_model_properties_objects(cls) -> Dict[str, "OpenClipModelProperties"
                 name="hf-hub:Marqo/marqo-fashionSigLIP",
                 dimensions=768,
                 note="Marqo's fashionSigLIP model",
+                imagePreprocessor="SigLIP",
+                size=224,
             ),
             "visheratin/nllb-clip-base-siglip": OpenClipModelProperties(
                 name="hf-hub:visheratin/nllb-clip-base-siglip",
                 dimensions=768,
                 note="A multilingual CLIP model",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "visheratin/nllb-siglip-mrl-base": OpenClipModelProperties(
                 name="hf-hub:visheratin/nllb-siglip-mrl-base",
                 dimensions=768,
                 note="A multilingual CLIP model",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "visheratin/nllb-clip-large-siglip": OpenClipModelProperties(
                 name="hf-hub:visheratin/nllb-clip-large-siglip",
                 dimensions=1152,
                 note="A multilingual CLIP model",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
             "visheratin/nllb-siglip-mrl-large": OpenClipModelProperties(
                 name="hf-hub:visheratin/nllb-siglip-mrl-large",
                 dimensions=1152,
                 note="A multilingual CLIP model",
+                imagePreprocessor="SigLIP",
+                size=384,
             ),
         }
 
diff --git a/tests/test_model_properties.py b/tests/test_model_properties.py
index 5444015..d739a78 100644
--- a/tests/test_model_properties.py
+++ b/tests/test_model_properties.py
@@ -171,3 +171,19 @@ def test_old_model_registry_matches_new(self):
                         new_model_registry_dict[model][key],
                         f"Model {model} has different value for key {key} in old and new model registry",
                     )
+
+    def test_siglip_models_have_imageprocesser_set(self):
+        open_clip_properties = _get_open_clip_properties()
+        for model_name, model_property in open_clip_properties.items():
+            if "siglip" in model_name.lower():
+                self.assertEqual(
+                    model_property["imageProcessor"],
+                    "SigLIP",
+                    f"Model {model_name} does not have imageProcessor set to SigLIP",
+                )
+            else:
+                # not a SigLIP model, imageProcessor should be None
+                self.assertIsNone(
+                    model_property.get("imageProcessor"),
+                    f"Model {model_name} has imageProcessor set even though it is not a SigLIP model",
+                )