diff --git a/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py b/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
index e7a92a96f34..e8eae73df3f 100644
--- a/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
+++ b/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
@@ -4800,7 +4800,9 @@ def test_generic_cost_per_token_bills_reasoning_nested_in_text_tokens_once(_loca
     )
 
 
-def test_generic_cost_per_token_keeps_billing_reasoning_reported_beside_text_tokens(_local_model_cost_map: None) -> None:
+def test_generic_cost_per_token_keeps_billing_reasoning_reported_beside_text_tokens(
+    _local_model_cost_map: None,
+) -> None:
     """Providers whose text_tokens exclude reasoning (text + reasoning == completion) stay billed in full."""
 
     model = "gpt-realtime-2.1-mini"
@@ -4835,4 +4837,6 @@ def test_generic_cost_per_token_bills_nested_reasoning_once_beside_audio_output(
 
     info = litellm.get_model_info(model=model, custom_llm_provider="openai")
     assert breakdown.reasoning_cost == pytest.approx(20 * info["output_cost_per_token"])
-    assert completion_cost == pytest.approx(30 * info["output_cost_per_token"] + 70 * info["output_cost_per_audio_token"])
+    assert completion_cost == pytest.approx(
+        30 * info["output_cost_per_token"] + 70 * info["output_cost_per_audio_token"]
+    )
diff --git a/tests/test_litellm/test_cost_calculator.py b/tests/test_litellm/test_cost_calculator.py
index 1f14fdc2c67..57246ec08a5 100644
--- a/tests/test_litellm/test_cost_calculator.py
+++ b/tests/test_litellm/test_cost_calculator.py
@@ -4494,7 +4494,9 @@ def test_batch_cost_calculator_gpt_6_astra_bills_half_the_standard_rate(_local_m
     assert completion_cost == pytest.approx(500 * 2.5e-5)
 
 
-def test_handle_realtime_stream_cost_calculation_bills_nested_reasoning_tokens_once(_local_model_cost_map: None) -> None:
+def test_handle_realtime_stream_cost_calculation_bills_nested_reasoning_tokens_once(
+    _local_model_cost_map: None,
+) -> None:
     """Realtime response.done nests reasoning_tokens inside text_tokens, so they are billed once."""
     results: OpenAIRealtimeStreamList = [
         {"type": "session.created", "session": {"model": "gpt-realtime-2.1-mini"}},
@@ -4530,7 +4532,9 @@ def test_handle_realtime_stream_cost_calculation_bills_nested_reasoning_tokens_o
 
     info = litellm.get_model_info(model="azure/gpt-realtime-2.1-mini", custom_llm_provider="azure")
     expected = (
-        43 * info["input_cost_per_token"] + 194 * info["input_cost_per_image_token"] + 23 * info["output_cost_per_token"]
+        43 * info["input_cost_per_token"]
+        + 194 * info["input_cost_per_image_token"]
+        + 23 * info["output_cost_per_token"]
     )
     assert total_cost == pytest.approx(expected)
     assert total_cost == pytest.approx(0.0002362)
@@ -4547,7 +4551,12 @@ def test_collect_and_combine_realtime_usage_stores_partitioned_text_tokens() ->
                     "total_tokens": 307,
                     "input_tokens": 237,
                     "output_tokens": 70,
-                    "input_token_details": {"text_tokens": 43, "audio_tokens": 0, "image_tokens": 194, "cached_tokens": 0},
+                    "input_token_details": {
+                        "text_tokens": 43,
+                        "audio_tokens": 0,
+                        "image_tokens": 194,
+                        "cached_tokens": 0,
+                    },
                     "output_token_details": {"text_tokens": 70, "audio_tokens": 0, "reasoning_tokens": 52},
                 }
             },
@@ -4559,7 +4568,12 @@ def test_collect_and_combine_realtime_usage_stores_partitioned_text_tokens() ->
                     "total_tokens": 363,
                     "input_tokens": 300,
                     "output_tokens": 63,
-                    "input_token_details": {"text_tokens": 106, "audio_tokens": 0, "image_tokens": 194, "cached_tokens": 0},
+                    "input_token_details": {
+                        "text_tokens": 106,
+                        "audio_tokens": 0,
+                        "image_tokens": 194,
+                        "cached_tokens": 0,
+                    },
                     "output_token_details": {"text_tokens": 63, "audio_tokens": 0, "reasoning_tokens": 43},
                 }
             },