diff --git a/litellm/utils.py b/litellm/utils.py
index 4b80d203b..7302bea75 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -2406,7 +2406,7 @@ def get_optional_params(
         elif k == "hf_model_name" and custom_llm_provider != "sagemaker":
             continue
         elif (
-            k.startswith("vertex_") and custom_llm_provider != "vertex_ai"
+            k.startswith("vertex_") and custom_llm_provider != "vertex_ai" and custom_llm_provider != "vertex_ai_beta"
         ):  # allow dynamically setting vertex ai init logic
             continue
         passed_params[k] = v