diff --git a/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py b/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
index b495a53160f4da5ff1d94d7e7998b7d3374d35a5..2d4cfea38bd12044a8db7bf33fe107222c29bbda 100644
--- a/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
+++ b/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
@@ -54,6 +54,8 @@ def cosine_sim(cpu_output, npu_output):
         return get_max_rel_err(n_value, b_value)
     if n_value.dtype == np.uint8:
         return compare_uint8_data(n_value, b_value)
+    n_value = n_value / (np.max(np.abs(n_value)) + np.finfo(n_value.dtype).eps)
+    b_value = b_value / (np.max(np.abs(b_value)) + np.finfo(b_value.dtype).eps)
     num = n_value.dot(b_value)
     a_norm = np.linalg.norm(n_value)
     b_norm = np.linalg.norm(b_value)