diff --git a/api.md b/api.md
index 0f5cdbbbbf..e0237803de 100644
--- a/api.md
+++ b/api.md
@@ -1,7 +1,7 @@
 # Shared Types
 
 ```python
-from openai.types import FunctionObject, FunctionParameters
+from openai.types import FunctionDefinition, FunctionParameters
 ```
 
 # Completions
diff --git a/src/openai/types/__init__.py b/src/openai/types/__init__.py
index 5840599a27..1b4fca26ee 100644
--- a/src/openai/types/__init__.py
+++ b/src/openai/types/__init__.py
@@ -5,7 +5,7 @@
 from .edit import Edit as Edit
 from .image import Image as Image
 from .model import Model as Model
-from .shared import FunctionObject as FunctionObject
+from .shared import FunctionDefinition as FunctionDefinition
 from .shared import FunctionParameters as FunctionParameters
 from .embedding import Embedding as Embedding
 from .fine_tune import FineTune as FineTune
diff --git a/src/openai/types/beta/assistant.py b/src/openai/types/beta/assistant.py
index 63332123c0..a21206765a 100644
--- a/src/openai/types/beta/assistant.py
+++ b/src/openai/types/beta/assistant.py
@@ -4,7 +4,7 @@
 from typing import List, Union, Optional
 from typing_extensions import Literal
 
-from ..shared import FunctionObject
+from ..shared import FunctionDefinition
 from ..._models import BaseModel
 
 __all__ = ["Assistant", "Tool", "ToolCodeInterpreter", "ToolRetrieval", "ToolFunction"]
@@ -21,7 +21,7 @@ class ToolRetrieval(BaseModel):
 
 
 class ToolFunction(BaseModel):
-    function: FunctionObject
+    function: FunctionDefinition
 
     type: Literal["function"]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/beta/assistant_create_params.py b/src/openai/types/beta/assistant_create_params.py
index ce7494efec..539897a7ba 100644
--- a/src/openai/types/beta/assistant_create_params.py
+++ b/src/openai/types/beta/assistant_create_params.py
@@ -73,7 +73,7 @@ class ToolAssistantToolsRetrieval(TypedDict, total=False):
 
 
 class ToolAssistantToolsFunction(TypedDict, total=False):
-    function: Required[shared_params.FunctionObject]
+    function: Required[shared_params.FunctionDefinition]
 
     type: Required[Literal["function"]]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/beta/assistant_update_params.py b/src/openai/types/beta/assistant_update_params.py
index 07a186a0d2..a0efd96ecd 100644
--- a/src/openai/types/beta/assistant_update_params.py
+++ b/src/openai/types/beta/assistant_update_params.py
@@ -75,7 +75,7 @@ class ToolAssistantToolsRetrieval(TypedDict, total=False):
 
 
 class ToolAssistantToolsFunction(TypedDict, total=False):
-    function: Required[shared_params.FunctionObject]
+    function: Required[shared_params.FunctionDefinition]
 
     type: Required[Literal["function"]]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/beta/thread_create_and_run_params.py b/src/openai/types/beta/thread_create_and_run_params.py
index 8e6b33249c..9f58dcd875 100644
--- a/src/openai/types/beta/thread_create_and_run_params.py
+++ b/src/openai/types/beta/thread_create_and_run_params.py
@@ -112,7 +112,7 @@ class ToolAssistantToolsRetrieval(TypedDict, total=False):
 
 
 class ToolAssistantToolsFunction(TypedDict, total=False):
-    function: Required[shared_params.FunctionObject]
+    function: Required[shared_params.FunctionDefinition]
 
     type: Required[Literal["function"]]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/beta/threads/run.py b/src/openai/types/beta/threads/run.py
index 59a443f75b..ffbba1e504 100644
--- a/src/openai/types/beta/threads/run.py
+++ b/src/openai/types/beta/threads/run.py
@@ -4,7 +4,7 @@
 from typing import List, Union, Optional
 from typing_extensions import Literal
 
-from ...shared import FunctionObject
+from ...shared import FunctionDefinition
 from ...._models import BaseModel
 from .required_action_function_tool_call import RequiredActionFunctionToolCall
 
@@ -52,7 +52,7 @@ class ToolAssistantToolsRetrieval(BaseModel):
 
 
 class ToolAssistantToolsFunction(BaseModel):
-    function: FunctionObject
+    function: FunctionDefinition
 
     type: Literal["function"]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/beta/threads/run_create_params.py b/src/openai/types/beta/threads/run_create_params.py
index 27e5a86a8e..df92f4fd2c 100644
--- a/src/openai/types/beta/threads/run_create_params.py
+++ b/src/openai/types/beta/threads/run_create_params.py
@@ -64,7 +64,7 @@ class ToolAssistantToolsRetrieval(TypedDict, total=False):
 
 
 class ToolAssistantToolsFunction(TypedDict, total=False):
-    function: Required[shared_params.FunctionObject]
+    function: Required[shared_params.FunctionDefinition]
 
     type: Required[Literal["function"]]
     """The type of tool being defined: `function`"""
diff --git a/src/openai/types/chat/chat_completion_tool_param.py b/src/openai/types/chat/chat_completion_tool_param.py
index 97e73f17ce..54c223955e 100644
--- a/src/openai/types/chat/chat_completion_tool_param.py
+++ b/src/openai/types/chat/chat_completion_tool_param.py
@@ -10,7 +10,7 @@
 
 
 class ChatCompletionToolParam(TypedDict, total=False):
-    function: Required[shared_params.FunctionObject]
+    function: Required[shared_params.FunctionDefinition]
 
     type: Required[Literal["function"]]
     """The type of the tool. Currently, only `function` is supported."""
diff --git a/src/openai/types/shared/__init__.py b/src/openai/types/shared/__init__.py
index ab67c41471..05bc4ff9ba 100644
--- a/src/openai/types/shared/__init__.py
+++ b/src/openai/types/shared/__init__.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless.
 
-from .function_object import FunctionObject as FunctionObject
+from .function_definition import FunctionDefinition as FunctionDefinition
 from .function_parameters import FunctionParameters as FunctionParameters
diff --git a/src/openai/types/shared/function_object.py b/src/openai/types/shared/function_definition.py
similarity index 93%
rename from src/openai/types/shared/function_object.py
rename to src/openai/types/shared/function_definition.py
index f566fe530d..bfcee50c85 100644
--- a/src/openai/types/shared/function_object.py
+++ b/src/openai/types/shared/function_definition.py
@@ -5,10 +5,10 @@
 from ..._models import BaseModel
 from .function_parameters import FunctionParameters
 
-__all__ = ["FunctionObject"]
+__all__ = ["FunctionDefinition"]
 
 
-class FunctionObject(BaseModel):
+class FunctionDefinition(BaseModel):
     name: str
     """The name of the function to be called.
 
diff --git a/src/openai/types/shared_params/__init__.py b/src/openai/types/shared_params/__init__.py
index ab67c41471..05bc4ff9ba 100644
--- a/src/openai/types/shared_params/__init__.py
+++ b/src/openai/types/shared_params/__init__.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless.
 
-from .function_object import FunctionObject as FunctionObject
+from .function_definition import FunctionDefinition as FunctionDefinition
 from .function_parameters import FunctionParameters as FunctionParameters
diff --git a/src/openai/types/shared_params/function_object.py b/src/openai/types/shared_params/function_definition.py
similarity index 92%
rename from src/openai/types/shared_params/function_object.py
rename to src/openai/types/shared_params/function_definition.py
index d3f5d0aaf4..6bb6fa6ff2 100644
--- a/src/openai/types/shared_params/function_object.py
+++ b/src/openai/types/shared_params/function_definition.py
@@ -6,10 +6,10 @@
 
 from ...types import shared_params
 
-__all__ = ["FunctionObject"]
+__all__ = ["FunctionDefinition"]
 
 
-class FunctionObject(TypedDict, total=False):
+class FunctionDefinition(TypedDict, total=False):
     name: Required[str]
     """The name of the function to be called.