diff --git a/tests/unit/llms/bedrock/chat/test_converse_transformation.py b/tests/unit/llms/bedrock/chat/test_converse_transformation.py
index efe6371122d..1950801b35b 100644
--- a/tests/unit/llms/bedrock/chat/test_converse_transformation.py
+++ b/tests/unit/llms/bedrock/chat/test_converse_transformation.py
@@ -4867,47 +4867,38 @@ def test_translate_response_format_native_output_config_claude_5_family(monkeypa
 
     Regression test for: https://github.com/BerriAI/litellm/issues/47687
     """
-    old_env = os.environ.get("LITELLM_LOCAL_MODEL_COST_MAP")
-    old_cost = litellm.model_cost
     monkeypatch.setenv("LITELLM_LOCAL_MODEL_COST_MAP", "True")
-    litellm.model_cost = litellm.get_model_cost_map(url="")
-    try:
-        config = AmazonConverseConfig()
-        response_format = {
-            "type": "json_schema",
-            "json_schema": {
-                "name": "ScoreResult",
-                "schema": {
-                    "type": "object",
-                    "properties": {"score": {"type": "number"}},
-                    "required": ["score"],
-                },
+    monkeypatch.setattr(litellm, "model_cost", litellm.get_model_cost_map(url=""))
+    config = AmazonConverseConfig()
+    response_format = {
+        "type": "json_schema",
+        "json_schema": {
+            "name": "ScoreResult",
+            "schema": {
+                "type": "object",
+                "properties": {"score": {"type": "number"}},
+                "required": ["score"],
             },
-        }
-        for model in (
-            "us.anthropic.claude-opus-5-5",
-            "us.anthropic.claude-sonnet-5-5",
-            "us.anthropic.claude-haiku-5-5",
-            "anthropic.claude-opus-5",
-            "anthropic.claude-sonnet-5",
-        ):
-            optional_params: dict = {}
-            result = config._translate_response_format_param(
-                value=response_format,
-                model=model,
-                optional_params=optional_params,
-                non_default_params={"response_format": response_format},
-                is_thinking_enabled=False,
-            )
-            assert "outputConfig" in result, f"{model}: json_schema should route to native outputConfig without thinking"
-            assert "tools" not in result, f"{model}: json tool path must not be used for Claude 5 family"
-            assert "tool_choice" not in result
-    finally:
-        litellm.model_cost = old_cost
-        if old_env is None:
-            os.environ.pop("LITELLM_LOCAL_MODEL_COST_MAP", None)
-        else:
-            monkeypatch.setenv("LITELLM_LOCAL_MODEL_COST_MAP", old_env)
+        },
+    }
+    for model in (
+        "us.anthropic.claude-opus-5-5",
+        "us.anthropic.claude-sonnet-5-5",
+        "us.anthropic.claude-haiku-5-5",
+        "anthropic.claude-opus-5",
+        "anthropic.claude-sonnet-5",
+    ):
+        optional_params: dict = {}
+        result = config._translate_response_format_param(
+            value=response_format,
+            model=model,
+            optional_params=optional_params,
+            non_default_params={"response_format": response_format},
+            is_thinking_enabled=False,
+        )
+        assert "outputConfig" in result, f"{model}: json_schema should route to native outputConfig without thinking"
+        assert "tools" not in result, f"{model}: json tool path must not be used for Claude 5 family"
+        assert "tool_choice" not in result
 
 
 CAPITAL_RESPONSE_FORMAT: Final = {