diff --git a/litellm/llms/chatgpt/image_edit/transformation.py b/litellm/llms/chatgpt/image_edit/transformation.py
index e34bb2ad81d..46e1857202a 100644
--- a/litellm/llms/chatgpt/image_edit/transformation.py
+++ b/litellm/llms/chatgpt/image_edit/transformation.py
@@ -30,7 +30,10 @@ class ChatGPTImageEditConfig(BaseImageEditConfig):
         self.image_generation_config = ChatGPTImageGenerationConfig()
 
     def get_supported_openai_params(self, model: str) -> List[str]:
-        return ["size"]
+        return [
+            str(param)
+            for param in self.image_generation_config.get_supported_openai_params(model)
+        ]
 
     def map_openai_params(
         self,
@@ -39,11 +42,19 @@ class ChatGPTImageEditConfig(BaseImageEditConfig):
         drop_params: bool,
     ) -> Dict[str, Any]:
         supported_params = self.get_supported_openai_params(model)
-        return {
-            key: value
-            for key, value in image_edit_optional_params.items()
-            if key in supported_params
-        }
+        mapped_params: Dict[str, Any] = {}
+        for key, value in image_edit_optional_params.items():
+            if key in supported_params:
+                mapped_params[key] = value
+            elif drop_params:
+                continue
+            else:
+                raise ValueError(
+                    f"Parameter {key} is not supported for model {model}. "
+                    f"Supported parameters are {supported_params}. "
+                    "Set drop_params=True to drop unsupported parameters."
+                )
+        return mapped_params
 
     def validate_environment(
         self,
diff --git a/tests/test_litellm/llms/chatgpt/image_edit/test_transformation.py b/tests/test_litellm/llms/chatgpt/image_edit/test_transformation.py
index 0fae768c907..f4db7bc3b32 100644
--- a/tests/test_litellm/llms/chatgpt/image_edit/test_transformation.py
+++ b/tests/test_litellm/llms/chatgpt/image_edit/test_transformation.py
@@ -100,12 +100,6 @@ def test_chatgpt_image_edit_delegates_environment_and_url():
 
     config.image_generation_config = cast(Any, FakeImageGenerationConfig())
 
-    assert config.get_supported_openai_params("gpt-image-2") == ["size"]
-    assert config.map_openai_params(
-        image_edit_optional_params={"size": "1024x1024", "quality": "high"},
-        model="gpt-image-2",
-        drop_params=False,
-    ) == {"size": "1024x1024"}
     assert config.validate_environment(
         headers={},
         model="gpt-image-2",
@@ -123,6 +117,56 @@ def test_chatgpt_image_edit_delegates_environment_and_url():
     )
 
 
+def test_chatgpt_image_edit_supports_image_generation_params():
+    config = ChatGPTImageEditConfig()
+
+    assert config.get_supported_openai_params("gpt-image-2") == [
+        "output_format",
+        "size",
+    ]
+    assert config.map_openai_params(
+        image_edit_optional_params={
+            "output_format": "png",
+            "size": "1024x1024",
+        },
+        model="gpt-image-2",
+        drop_params=False,
+    ) == {
+        "output_format": "png",
+        "size": "1024x1024",
+    }
+
+
+def test_chatgpt_image_edit_drops_unsupported_params_when_requested():
+    config = ChatGPTImageEditConfig()
+
+    assert config.map_openai_params(
+        image_edit_optional_params={
+            "output_format": "png",
+            "size": "1024x1024",
+            "quality": "high",
+            "n": 2,
+        },
+        model="gpt-image-2",
+        drop_params=True,
+    ) == {
+        "output_format": "png",
+        "size": "1024x1024",
+    }
+
+
+@pytest.mark.parametrize("param", ["quality", "n"])
+def test_chatgpt_image_edit_rejects_unsupported_params_by_default(param):
+    config = ChatGPTImageEditConfig()
+
+    with pytest.raises(ValueError, match=f"Parameter {param} is not supported"):
+        config.map_openai_params(
+            image_edit_optional_params={param: "unsupported"},
+            model="gpt-image-2",
+            drop_params=False,
+        )
+
+
 def test_chatgpt_image_edit_transform_response_and_error_class():
     config = ChatGPTImageEditConfig()