diff --git a/.jules/bolt.md b/.jules/bolt.md
new file mode 100644
index 00000000000..3ab07c55e82
--- /dev/null
+++ b/.jules/bolt.md
@@ -0,0 +1,3 @@
+## 2025-05-18 - FastDeploy get_tensor PySafeSlice parsing
+**Learning:** Checking for `PySafeSlice` by calling `str(type(input))` and looking for a substring (`"PySafeSlice" in str(type(input))`) creates unneeded string formatting overhead in the extremely hot path of `get_tensor` logic since it's frequently called across weight loading and other utils.
+**Action:** Replace `str(type(input))` with `type(input).__name__ == "PySafeSlice"` to speed it up.
diff --git a/fastdeploy/model_executor/layers/utils.py b/fastdeploy/model_executor/layers/utils.py
index f3444173e18..3059cef3da3 100644
--- a/fastdeploy/model_executor/layers/utils.py
+++ b/fastdeploy/model_executor/layers/utils.py
@@ -332,7 +332,9 @@ def get_tensor(input: Union[paddle.Tensor, np.ndarray, str], model_path=None) ->
         paddle.Tensor: Returns a PaddlePaddle tensor.
 
     """
-    if "PySafeSlice" in str(type(input)):
+    # Optimize type checking: type(input).__name__ avoids the overhead of converting
+    # the type object to a string for substring matching.
+    if type(input).__name__ == "PySafeSlice":
         input = input.get()
 
     if isinstance(input, paddle.Tensor):