diff --git a/odoo-stubs/models.pyi b/odoo-stubs/models.pyi
index d53a9d6..626b946 100644
--- a/odoo-stubs/models.pyi
+++ b/odoo-stubs/models.pyi
@@ -28,6 +28,7 @@ from .sql_db import Cursor
 
 _T = TypeVar("_T")
 _ModelT = TypeVar("_ModelT", bound=BaseModel)
+_Model2T = TypeVar("_Model2T", bound=BaseModel)
 _Domain = list
 
 regex_order: Pattern[str]
@@ -454,12 +455,25 @@ class BaseModel(metaclass=MetaModel):
     def _convert_to_record(self, values: dict[str, Any]): ...
     def _convert_to_write(self, values: dict[str, Any]) -> dict[str, Any]: ...
     def _mapped_func(self, func: Callable): ...
-    def mapped(self, func: Callable | str): ...
+    @overload
+    def mapped(self: _ModelT, func: Callable[[_ModelT], _Model2T]) -> _Model2T: ...
+    @overload
+    def mapped(self: _ModelT, func: Callable[[_ModelT], _T]) -> list[_T]: ...
+    @overload
+    def mapped(self, func: str) -> Any: ...
     def _mapped_cache(self, name_seq: str): ...
-    def filtered(self: _ModelT, func: Callable | str) -> _ModelT: ...
+    @overload
+    def filtered(self: _ModelT, func: Callable[[_ModelT], bool]) -> _ModelT: ...
+    @overload
+    def filtered(self: _ModelT, func: str) -> _ModelT: ...
     def filtered_domain(self: _ModelT, domain: _Domain) -> _ModelT: ...
+    @overload
     def sorted(
-        self: _ModelT, key: Callable | str | None = ..., reverse: bool = ...
+        self: _ModelT, key: Callable[[_ModelT], Any] = ..., reverse: bool = ...
+    ) -> _ModelT: ...
+    @overload
+    def sorted(
+        self: _ModelT, key: str | None = ..., reverse: bool = ...
     ) -> _ModelT: ...
     def update(self, values: dict[str, Any]) -> None: ...
     def flush(
@@ -492,7 +506,10 @@ class BaseModel(metaclass=MetaModel):
     def __str__(self) -> str: ...
     def __repr__(self) -> str: ...
     def __hash__(self) -> int: ...
-    def __getitem__(self, key: str | int | slice): ...
+    @overload
+    def __getitem__(self: _ModelT, key: int | slice) -> _ModelT: ...
+    @overload
+    def __getitem__(self, key: str) -> Any: ...
     def __setitem__(self, key: str, value): ...
     def _cache(self) -> RecordCache: ...
     def _in_cache_without(self: _ModelT, field: Field, limit: int = ...) -> _ModelT: ...