diff --git a/api/onnx_web/params.py b/api/onnx_web/params.py
index 9912d6649..244774e12 100644
--- a/api/onnx_web/params.py
+++ b/api/onnx_web/params.py
@@ -102,6 +102,7 @@ def __init__(
         self.provider = provider
         self.options = options
         self.optimizations = optimizations or []
+        self.sess_options_cache = None
 
     def __str__(self) -> str:
         return "%s - %s (%s)" % (self.device, self.provider, self.options)
@@ -113,6 +114,9 @@ def ort_provider(self) -> Union[str, Tuple[str, Any]]:
             return (self.provider, self.options)
 
     def sess_options(self) -> SessionOptions:
+        if self.sess_options_cache is not None:
+            return self.sess_options_cache
+
         sess = SessionOptions()
 
         if "onnx-low-memory" in self.optimizations:
@@ -135,6 +139,7 @@ def sess_options(self) -> SessionOptions:
             logger.debug("enabling ONNX deterministic compute")
             sess.use_deterministic_compute = True
 
+        self.sess_options_cache = sess
         return sess
 
     def torch_str(self) -> str: