diff --git a/stubs/moviepy/video/fx/speedx.pyi b/stubs/moviepy/video/fx/speedx.pyi
new file mode 100644
--- /dev/null
+++ b/stubs/moviepy/video/fx/speedx.pyi
@@ -0,0 +1,7 @@
+# Stubs for moviepy.video.fx.speedx (Python 3)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Optional
+
+def speedx(clip: Any, factor: Optional[Any] = ..., final_duration: Optional[Any] = ...): ...