diff --git a/litellm/litellm_core_utils/litellm_logging.py b/litellm/litellm_core_utils/litellm_logging.py
index 7f5f8f1aa98..b458c3355ef 100644
--- a/litellm/litellm_core_utils/litellm_logging.py
+++ b/litellm/litellm_core_utils/litellm_logging.py
@@ -352,9 +352,9 @@ class Logging(LiteLLMLoggingBaseClass):
         )
         self.function_id = function_id
         self.streaming_chunks: List[Any] = []  # for generating complete stream response
-        self.sync_streaming_chunks: List[
-            Any
-        ] = []  # for generating complete stream response
+        self.sync_streaming_chunks: List[Any] = (
+            []
+        )  # for generating complete stream response
         self.log_raw_request_response = log_raw_request_response
 
         # Initialize dynamic callbacks
@@ -782,9 +782,9 @@ class Logging(LiteLLMLoggingBaseClass):
                         prompt_spec=prompt_spec,
                         dynamic_callback_params=dynamic_callback_params,
                     ):
-                        self.model_call_details[
-                            "prompt_integration"
-                        ] = logger.__class__.__name__
+                        self.model_call_details["prompt_integration"] = (
+                            logger.__class__.__name__
+                        )
                         return logger
                 except Exception:
                     # If check fails, continue to next logger
@@ -852,9 +852,9 @@ class Logging(LiteLLMLoggingBaseClass):
         if anthropic_cache_control_logger := AnthropicCacheControlHook.get_custom_logger_for_anthropic_cache_control_hook(
             non_default_params
         ):
-            self.model_call_details[
-                "prompt_integration"
-            ] = anthropic_cache_control_logger.__class__.__name__
+            self.model_call_details["prompt_integration"] = (
+                anthropic_cache_control_logger.__class__.__name__
+            )
             return anthropic_cache_control_logger
 
         #########################################################
@@ -866,9 +866,9 @@ class Logging(LiteLLMLoggingBaseClass):
                 internal_usage_cache=None,
                 llm_router=None,
             )
-            self.model_call_details[
-                "prompt_integration"
-            ] = vector_store_custom_logger.__class__.__name__
+            self.model_call_details["prompt_integration"] = (
+                vector_store_custom_logger.__class__.__name__
+            )
             # Add to global callbacks so post-call hooks are invoked
             if (
                 vector_store_custom_logger
@@ -928,9 +928,9 @@ class Logging(LiteLLMLoggingBaseClass):
             model
         ):  # if model name was changes pre-call, overwrite the initial model call name with the new one
             self.model_call_details["model"] = model
-        self.model_call_details["litellm_params"][
-            "api_base"
-        ] = self._get_masked_api_base(additional_args.get("api_base", ""))
+        self.model_call_details["litellm_params"]["api_base"] = (
+            self._get_masked_api_base(additional_args.get("api_base", ""))
+        )
 
     def pre_call(self, input, api_key, model=None, additional_args={}):  # noqa: PLR0915
         # Log the exact input to the LLM API
@@ -959,9 +959,7 @@ class Logging(LiteLLMLoggingBaseClass):
                 try:
                     # [Non-blocking Extra Debug Information in metadata]
                     if turn_off_message_logging is True:
-                        _metadata[
-                            "raw_request"
-                        ] = "redacted by litellm. \
+                        _metadata["raw_request"] = "redacted by litellm. \
                             'litellm.turn_off_message_logging=True'"
                     else:
                         curl_command = self._get_request_curl_command(
@@ -973,35 +971,31 @@ class Logging(LiteLLMLoggingBaseClass):
 
                         _metadata["raw_request"] = str(curl_command)
                         # split up, so it's easier to parse in the UI
-                        self.model_call_details[
-                            "raw_request_typed_dict"
-                        ] = RawRequestTypedDict(
-                            raw_request_api_base=str(
-                                additional_args.get("api_base") or ""
-                            ),
-                            raw_request_body=self._get_raw_request_body(
-                                additional_args.get("complete_input_dict", {})
-                            ),
-                            # NOTE: setting ignore_sensitive_headers to True will cause
-                            # the Authorization header to be leaked when calls to the health
-                            # endpoint are made and fail.
-                            raw_request_headers=self._get_masked_headers(
-                                additional_args.get("headers", {}) or {},
-                            ),
-                            error=None,
+                        self.model_call_details["raw_request_typed_dict"] = (
+                            RawRequestTypedDict(
+                                raw_request_api_base=str(
+                                    additional_args.get("api_base") or ""
+                                ),
+                                raw_request_body=self._get_raw_request_body(
+                                    additional_args.get("complete_input_dict", {})
+                                ),
+                                # NOTE: setting ignore_sensitive_headers to True will cause
+                                # the Authorization header to be leaked when calls to the health
+                                # endpoint are made and fail.
+                                raw_request_headers=self._get_masked_headers(
+                                    additional_args.get("headers", {}) or {},
+                                ),
+                                error=None,
+                            )
                         )
                 except Exception as e:
-                    self.model_call_details[
-                        "raw_request_typed_dict"
-                    ] = RawRequestTypedDict(
-                        error=str(e),
-                    )
-                    _metadata[
-                        "raw_request"
-                    ] = "Unable to Log \
-                        raw request: {}".format(
-                        str(e)
+                    self.model_call_details["raw_request_typed_dict"] = (
+                        RawRequestTypedDict(
+                            error=str(e),
+                        )
                     )
+                    _metadata["raw_request"] = "Unable to Log \
+                        raw request: {}".format(str(e))
             if getattr(self, "logger_fn", None) and callable(self.logger_fn):
                 try:
                     self.logger_fn(
@@ -1301,13 +1295,13 @@ class Logging(LiteLLMLoggingBaseClass):
         for callback in callbacks:
             try:
                 if isinstance(callback, CustomLogger):
-                    response: Optional[
-                        MCPPostCallResponseObject
-                    ] = await callback.async_post_mcp_tool_call_hook(
-                        kwargs=kwargs,
-                        response_obj=post_mcp_tool_call_response_obj,
-                        start_time=start_time,
-                        end_time=end_time,
+                    response: Optional[MCPPostCallResponseObject] = (
+                        await callback.async_post_mcp_tool_call_hook(
+                            kwargs=kwargs,
+                            response_obj=post_mcp_tool_call_response_obj,
+                            start_time=start_time,
+                            end_time=end_time,
+                        )
                     )
                     ######################################################################
                     # if any of the callbacks modify the response, use the modified response
@@ -1502,9 +1496,9 @@ class Logging(LiteLLMLoggingBaseClass):
             verbose_logger.debug(
                 f"response_cost_failure_debug_information: {debug_info}"
             )
-            self.model_call_details[
-                "response_cost_failure_debug_information"
-            ] = debug_info
+            self.model_call_details["response_cost_failure_debug_information"] = (
+                debug_info
+            )
             return None
 
         try:
@@ -1530,9 +1524,9 @@ class Logging(LiteLLMLoggingBaseClass):
             verbose_logger.debug(
                 f"response_cost_failure_debug_information: {debug_info}"
             )
-            self.model_call_details[
-                "response_cost_failure_debug_information"
-            ] = debug_info
+            self.model_call_details["response_cost_failure_debug_information"] = (
+                debug_info
+            )
 
         return None
 
@@ -1688,9 +1682,9 @@ class Logging(LiteLLMLoggingBaseClass):
                 result=logging_result
             )
 
-        self.model_call_details[
-            "standard_logging_object"
-        ] = self._build_standard_logging_payload(logging_result, start_time, end_time)
+        self.model_call_details["standard_logging_object"] = (
+            self._build_standard_logging_payload(logging_result, start_time, end_time)
+        )
 
         if (
             standard_logging_payload := self.model_call_details.get(
@@ -1768,9 +1762,9 @@ class Logging(LiteLLMLoggingBaseClass):
                 end_time = datetime.datetime.now()
             if self.completion_start_time is None:
                 self.completion_start_time = end_time
-                self.model_call_details[
-                    "completion_start_time"
-                ] = self.completion_start_time
+                self.model_call_details["completion_start_time"] = (
+                    self.completion_start_time
+                )
 
             self.model_call_details["log_event_type"] = "successful_api_call"
             self.model_call_details["end_time"] = end_time
@@ -1807,10 +1801,10 @@ class Logging(LiteLLMLoggingBaseClass):
                         end_time=end_time,
                     )
                 elif isinstance(result, dict) or isinstance(result, list):
-                    self.model_call_details[
-                        "standard_logging_object"
-                    ] = self._build_standard_logging_payload(
-                        result, start_time, end_time
+                    self.model_call_details["standard_logging_object"] = (
+                        self._build_standard_logging_payload(
+                            result, start_time, end_time
+                        )
                     )
                     if (
                         standard_logging_payload := self.model_call_details.get(
@@ -1819,9 +1813,9 @@ class Logging(LiteLLMLoggingBaseClass):
                     ) is not None:
                         emit_standard_logging_payload(standard_logging_payload)
             elif standard_logging_object is not None:
-                self.model_call_details[
-                    "standard_logging_object"
-                ] = standard_logging_object
+                self.model_call_details["standard_logging_object"] = (
+                    standard_logging_object
+                )
             else:
                 self.model_call_details["response_cost"] = None
 
@@ -1979,17 +1973,17 @@ class Logging(LiteLLMLoggingBaseClass):
                 verbose_logger.debug(
                     "Logging Details LiteLLM-Success Call streaming complete"
                 )
-                self.model_call_details[
-                    "complete_streaming_response"
-                ] = complete_streaming_response
-                self.model_call_details[
-                    "response_cost"
-                ] = self._response_cost_calculator(result=complete_streaming_response)
+                self.model_call_details["complete_streaming_response"] = (
+                    complete_streaming_response
+                )
+                self.model_call_details["response_cost"] = (
+                    self._response_cost_calculator(result=complete_streaming_response)
+                )
                 ## STANDARDIZED LOGGING PAYLOAD
-                self.model_call_details[
-                    "standard_logging_object"
-                ] = self._build_standard_logging_payload(
-                    complete_streaming_response, start_time, end_time
+                self.model_call_details["standard_logging_object"] = (
+                    self._build_standard_logging_payload(
+                        complete_streaming_response, start_time, end_time
+                    )
                 )
                 if (
                     standard_logging_payload := self.model_call_details.get(
@@ -2323,10 +2317,10 @@ class Logging(LiteLLMLoggingBaseClass):
                             )
                         else:
                             if self.stream and complete_streaming_response:
-                                self.model_call_details[
-                                    "complete_response"
-                                ] = self.model_call_details.get(
-                                    "complete_streaming_response", {}
+                                self.model_call_details["complete_response"] = (
+                                    self.model_call_details.get(
+                                        "complete_streaming_response", {}
+                                    )
                                 )
                                 result = self.model_call_details["complete_response"]
                             openMeterLogger.log_success_event(
@@ -2350,10 +2344,10 @@ class Logging(LiteLLMLoggingBaseClass):
                             )
                         else:
                             if self.stream and complete_streaming_response:
-                                self.model_call_details[
-                                    "complete_response"
-                                ] = self.model_call_details.get(
-                                    "complete_streaming_response", {}
+                                self.model_call_details["complete_response"] = (
+                                    self.model_call_details.get(
+                                        "complete_streaming_response", {}
+                                    )
                                 )
                                 result = self.model_call_details["complete_response"]
 
@@ -2492,9 +2486,9 @@ class Logging(LiteLLMLoggingBaseClass):
         if complete_streaming_response is not None:
             print_verbose("Async success callbacks: Got a complete streaming response")
 
-            self.model_call_details[
-                "async_complete_streaming_response"
-            ] = complete_streaming_response
+            self.model_call_details["async_complete_streaming_response"] = (
+                complete_streaming_response
+            )
 
             try:
                 if self.model_call_details.get("cache_hit", False) is True:
@@ -2505,10 +2499,10 @@ class Logging(LiteLLMLoggingBaseClass):
                         model_call_details=self.model_call_details
                     )
                     # base_model defaults to None if not set on model_info
-                    self.model_call_details[
-                        "response_cost"
-                    ] = self._response_cost_calculator(
-                        result=complete_streaming_response
+                    self.model_call_details["response_cost"] = (
+                        self._response_cost_calculator(
+                            result=complete_streaming_response
+                        )
                     )
 
                 verbose_logger.debug(
@@ -2521,10 +2515,10 @@ class Logging(LiteLLMLoggingBaseClass):
                 self.model_call_details["response_cost"] = None
 
             ## STANDARDIZED LOGGING PAYLOAD
-            self.model_call_details[
-                "standard_logging_object"
-            ] = self._build_standard_logging_payload(
-                complete_streaming_response, start_time, end_time
+            self.model_call_details["standard_logging_object"] = (
+                self._build_standard_logging_payload(
+                    complete_streaming_response, start_time, end_time
+                )
             )
 
             # print standard logging payload
@@ -2551,9 +2545,9 @@ class Logging(LiteLLMLoggingBaseClass):
             # _success_handler_helper_fn
             if self.model_call_details.get("standard_logging_object") is None:
                 ## STANDARDIZED LOGGING PAYLOAD
-                self.model_call_details[
-                    "standard_logging_object"
-                ] = self._build_standard_logging_payload(result, start_time, end_time)
+                self.model_call_details["standard_logging_object"] = (
+                    self._build_standard_logging_payload(result, start_time, end_time)
+                )
 
                 # print standard logging payload
                 if (
@@ -2796,18 +2790,18 @@ class Logging(LiteLLMLoggingBaseClass):
 
         ## STANDARDIZED LOGGING PAYLOAD
 
-        self.model_call_details[
-            "standard_logging_object"
-        ] = get_standard_logging_object_payload(
-            kwargs=self.model_call_details,
-            init_response_obj={},
-            start_time=start_time,
-            end_time=end_time,
-            logging_obj=self,
-            status="failure",
-            error_str=str(exception),
-            original_exception=exception,
-            standard_built_in_tools_params=self.standard_built_in_tools_params,
+        self.model_call_details["standard_logging_object"] = (
+            get_standard_logging_object_payload(
+                kwargs=self.model_call_details,
+                init_response_obj={},
+                start_time=start_time,
+                end_time=end_time,
+                logging_obj=self,
+                status="failure",
+                error_str=str(exception),
+                original_exception=exception,
+                standard_built_in_tools_params=self.standard_built_in_tools_params,
+            )
         )
         return start_time, end_time
 
@@ -3771,9 +3765,9 @@ def _init_custom_logger_compatible_class(  # noqa: PLR0915
                 service_name=arize_config.project_name,
             )
 
-            os.environ[
-                "OTEL_EXPORTER_OTLP_TRACES_HEADERS"
-            ] = f"space_id={arize_config.space_key or arize_config.space_id},api_key={arize_config.api_key}"
+            os.environ["OTEL_EXPORTER_OTLP_TRACES_HEADERS"] = (
+                f"space_id={arize_config.space_key or arize_config.space_id},api_key={arize_config.api_key}"
+            )
             for callback in _in_memory_loggers:
                 if (
                     isinstance(callback, ArizeLogger)
@@ -3799,13 +3793,13 @@ def _init_custom_logger_compatible_class(  # noqa: PLR0915
                 existing_attrs = os.environ.get("OTEL_RESOURCE_ATTRIBUTES", "")
                 # Add openinference.project.name attribute
                 if existing_attrs:
-                    os.environ[
-                        "OTEL_RESOURCE_ATTRIBUTES"
-                    ] = f"{existing_attrs},openinference.project.name={arize_phoenix_config.project_name}"
+                    os.environ["OTEL_RESOURCE_ATTRIBUTES"] = (
+                        f"{existing_attrs},openinference.project.name={arize_phoenix_config.project_name}"
+                    )
                 else:
-                    os.environ[
-                        "OTEL_RESOURCE_ATTRIBUTES"
-                    ] = f"openinference.project.name={arize_phoenix_config.project_name}"
+                    os.environ["OTEL_RESOURCE_ATTRIBUTES"] = (
+                        f"openinference.project.name={arize_phoenix_config.project_name}"
+                    )
 
             # Set Phoenix project name from environment variable
             phoenix_project_name = os.environ.get("PHOENIX_PROJECT_NAME", None)
@@ -3813,19 +3807,19 @@ def _init_custom_logger_compatible_class(  # noqa: PLR0915
                 existing_attrs = os.environ.get("OTEL_RESOURCE_ATTRIBUTES", "")
                 # Add openinference.project.name attribute
                 if existing_attrs:
-                    os.environ[
-                        "OTEL_RESOURCE_ATTRIBUTES"
-                    ] = f"{existing_attrs},openinference.project.name={phoenix_project_name}"
+                    os.environ["OTEL_RESOURCE_ATTRIBUTES"] = (
+                        f"{existing_attrs},openinference.project.name={phoenix_project_name}"
+                    )
                 else:
-                    os.environ[
-                        "OTEL_RESOURCE_ATTRIBUTES"
-                    ] = f"openinference.project.name={phoenix_project_name}"
+                    os.environ["OTEL_RESOURCE_ATTRIBUTES"] = (
+                        f"openinference.project.name={phoenix_project_name}"
+                    )
 
             # auth can be disabled on local deployments of arize phoenix
             if arize_phoenix_config.otlp_auth_headers is not None:
-                os.environ[
-                    "OTEL_EXPORTER_OTLP_TRACES_HEADERS"
-                ] = arize_phoenix_config.otlp_auth_headers
+                os.environ["OTEL_EXPORTER_OTLP_TRACES_HEADERS"] = (
+                    arize_phoenix_config.otlp_auth_headers
+                )
 
             for callback in _in_memory_loggers:
                 if (
@@ -4012,9 +4006,9 @@ def _init_custom_logger_compatible_class(  # noqa: PLR0915
                 exporter="otlp_http",
                 endpoint="https://langtrace.ai/api/trace",
             )
-            os.environ[
-                "OTEL_EXPORTER_OTLP_TRACES_HEADERS"
-            ] = f"api_key={os.getenv('LANGTRACE_API_KEY')}"
+            os.environ["OTEL_EXPORTER_OTLP_TRACES_HEADERS"] = (
+                f"api_key={os.getenv('LANGTRACE_API_KEY')}"
+            )
             for callback in _in_memory_loggers:
                 if (
                     isinstance(callback, OpenTelemetry)
@@ -4938,10 +4932,10 @@ class StandardLoggingPayloadSetup:
             for key in StandardLoggingHiddenParams.__annotations__.keys():
                 if key in hidden_params:
                     if key == "additional_headers":
-                        clean_hidden_params[
-                            "additional_headers"
-                        ] = StandardLoggingPayloadSetup.get_additional_headers(
-                            hidden_params[key]
+                        clean_hidden_params["additional_headers"] = (
+                            StandardLoggingPayloadSetup.get_additional_headers(
+                                hidden_params[key]
+                            )
                         )
                     else:
                         clean_hidden_params[key] = hidden_params[key]  # type: ignore
@@ -5580,9 +5574,9 @@ def scrub_sensitive_keys_in_metadata(litellm_params: Optional[dict]):
     ):
         for k, v in metadata["user_api_key_metadata"].items():
             if k == "logging":  # prevent logging user logging keys
-                cleaned_user_api_key_metadata[
-                    k
-                ] = "scrubbed_by_litellm_for_sensitive_keys"
+                cleaned_user_api_key_metadata[k] = (
+                    "scrubbed_by_litellm_for_sensitive_keys"
+                )
             else:
                 cleaned_user_api_key_metadata[k] = v
 
diff --git a/tests/test_litellm/interactions/test_openapi_compliance.py b/tests/test_litellm/interactions/test_openapi_compliance.py
index 5b2edcf1ee7..a22244f3f8c 100644
--- a/tests/test_litellm/interactions/test_openapi_compliance.py
+++ b/tests/test_litellm/interactions/test_openapi_compliance.py
@@ -77,6 +77,11 @@ class TestRequestCompliance:
         schema = spec_dict["components"]["schemas"]["CreateModelInteractionParams"]
         input_schema = schema["properties"]["input"]
         
+        # The input property may be inline oneOf or a $ref to InteractionsInput
+        if "$ref" in input_schema:
+            ref_name = input_schema["$ref"].split("/")[-1]
+            input_schema = spec_dict["components"]["schemas"][ref_name]
+
         # Should be oneOf with multiple types
         assert "oneOf" in input_schema
         
@@ -100,10 +105,21 @@ class TestRequestCompliance:
         assert "discriminator" in content_schema
         assert content_schema["discriminator"]["propertyName"] == "type"
         
-        # Check TextContent is an option
-        mapping = content_schema["discriminator"]["mapping"]
-        assert "text" in mapping
-        print(f"Content type discriminator mapping: {list(mapping.keys())}")
+        # Check TextContent is an option (via mapping if present, or via oneOf refs)
+        mapping = content_schema["discriminator"].get("mapping")
+        if mapping:
+            assert "text" in mapping
+            print(f"Content type discriminator mapping: {list(mapping.keys())}")
+        else:
+            # Discriminator without explicit mapping — verify via oneOf
+            one_of = content_schema.get("oneOf", [])
+            ref_names = [
+                opt["$ref"].split("/")[-1] for opt in one_of if "$ref" in opt
+            ]
+            assert "TextContent" in ref_names, (
+                f"TextContent not found in oneOf refs: {ref_names}"
+            )
+            print(f"Content type discriminator (no mapping), oneOf refs: {ref_names}")
 
     def test_text_content_schema(self, spec_dict):
         """Verify TextContent schema."""