diff --git a/litellm/proxy/management_endpoints/model_management_endpoints.py b/litellm/proxy/management_endpoints/model_management_endpoints.py
index 8155119cf7b..2234e825090 100644
--- a/litellm/proxy/management_endpoints/model_management_endpoints.py
+++ b/litellm/proxy/management_endpoints/model_management_endpoints.py
@@ -2094,10 +2094,8 @@ async def add_new_model(
             enforced=bool(general_settings.get(ENFORCE_RPM_TPM_ON_MODEL_ADD_SETTING, False)),
         )
 
-        model_params.model_info = (
-            ModelInfo.model_validate(  # rebind-ok: downstream team-model handling mutates this same object
-                dict(without_server_derived_pricing(model_params.model_info.model_dump(exclude_none=True)))
-            )
+        model_params.model_info = ModelInfo(  # rebind-ok: downstream team-model handling mutates this same object
+            **without_server_derived_pricing(model_params.model_info.model_dump(exclude_none=True))
         )
 
         model_response: prisma_models.LiteLLM_ProxyModelTable | LiteLLM_ProxyModelTable | None = None
diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index 84231423562..00c55b35182 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -3667,7 +3667,7 @@ def is_server_derived_pricing_key(key: str) -> bool:
     return key in SERVER_DERIVED_PRICING_FIELDS or ABOVE_THRESHOLD_COST_KEY_PATTERN.search(key) is not None
 
 
-def without_server_derived_pricing(model_info: Mapping[str, object]) -> Mapping[str, object]:
+def without_server_derived_pricing(model_info: Mapping[str, Any]) -> Mapping[str, Any]:
     """Drop the pricing ``/model/info`` derives for display, keeping everything else.
 
     ``/model/info`` fills a deployment's missing pricing in from the cost map so the