diff --git a/tests/llm_translation/test_azure_o_series.py b/tests/llm_translation/test_azure_o_series.py
index fefe52eb92..925453e68c 100644
--- a/tests/llm_translation/test_azure_o_series.py
+++ b/tests/llm_translation/test_azure_o_series.py
@@ -20,6 +20,8 @@ from base_llm_unit_tests import BaseLLMChatTest, BaseOSeriesModelsTest
 
 class TestAzureOpenAIO3Mini(BaseOSeriesModelsTest, BaseLLMChatTest):
     def get_base_completion_call_args(self):
+        # Clear the LLM client cache to prevent test pollution from cached clients
+        litellm.in_memory_llm_clients_cache.flush_cache()
         return {
             "model": "azure/o3-mini",
             "api_key": os.getenv("AZURE_API_KEY"),