diff --git a/stdlib/builtins.pyi b/stdlib/builtins.pyi
index 9c8394ced492..4c78ea9b478f 100644
--- a/stdlib/builtins.pyi
+++ b/stdlib/builtins.pyi
@@ -66,7 +66,7 @@ from typing import (  # noqa: Y022  # ruff: ignore[deprecated-import]
 
 # we can't import `Literal` from typing or mypy crashes: see #11247
 # ruff: ignore[deprecated-import]
-from typing_extensions import Buffer, Literal, LiteralString, Self, TypeIs, TypeVarTuple, deprecated, disjoint_base  # noqa: Y023
+from typing_extensions import Literal, LiteralString, Self, TypeIs, TypeVarTuple, deprecated, disjoint_base  # noqa: Y023
 
 if sys.version_info >= (3, 14):
     from _typeshed import AnnotateFunc
@@ -828,7 +828,8 @@ class bytes(Sequence[int]):
     def __add__(self, value: ReadableBuffer, /) -> bytes: ...
     def __mul__(self, value: SupportsIndex, /) -> bytes: ...
     def __rmul__(self, value: SupportsIndex, /) -> bytes: ...
-    def __mod__(self, value: Buffer | SupportsBytes | tuple[Buffer | SupportsBytes, ...], /) -> bytes: ...
+    # The format string chooses the conversion, including numbers and %a/%r (PEP 461).
+    def __mod__(self, value: Any, /) -> bytes: ...
     def __rmod__(self, value: bytes, /) -> bytes: ...
     # Incompatible with Sequence.__contains__
     def __contains__(self, key: SupportsIndex | ReadableBuffer, /) -> bool: ...  # type: ignore[override]
@@ -960,7 +961,8 @@ class bytearray(MutableSequence[int]):
     def __mul__(self, value: SupportsIndex, /) -> bytearray: ...
     def __rmul__(self, value: SupportsIndex, /) -> bytearray: ...
     def __imul__(self, value: SupportsIndex, /) -> Self: ...
-    def __mod__(self, value: Buffer | SupportsBytes | tuple[Buffer | SupportsBytes, ...], /) -> bytearray: ...
+    # The format string chooses the conversion, including numbers and %a/%r (PEP 461).
+    def __mod__(self, value: Any, /) -> bytearray: ...
     def __rmod__(self, value: bytearray, /) -> bytearray: ...
     # Incompatible with Sequence.__contains__
     def __contains__(self, key: SupportsIndex | ReadableBuffer, /) -> bool: ...  # type: ignore[override]