diff --git a/.buildkite/cuda/test-merge.yml b/.buildkite/cuda/test-merge.yml
index baf64a2cc..021f5d678 100644
--- a/.buildkite/cuda/test-merge.yml
+++ b/.buildkite/cuda/test-merge.yml
@@ -80,26 +80,6 @@ steps:
   - group: ":card_index_dividers: E2E Test"
     depends_on: upload-merge-pipeline
     steps:
-      - label: "TTS · Breeze-TTS-2 Voice Design"
-        timeout_in_minutes: 20
-        source_file_dependencies:
-          - tests/e2e/online_serving/test_breeze_tts_2.py
-          - tests/helpers/client.py
-          - tests/helpers/media.py
-          - vllm_omni/model_executor/models/breeze_tts_2/
-          - vllm_omni/model_executor/models/qwen3_tts/
-          - vllm_omni/model_executor/stage_input_processors/breeze_tts_2.py
-          - vllm_omni/entrypoints/openai/tts_adapters/breeze_tts_2.py
-          - vllm_omni/deploy/breeze_tts_2.yaml
-          - vllm_omni/deploy/breeze_tts_2_throughput.yaml
-          - vllm_omni/deploy/breeze_tts.yaml
-          - vllm_omni/deploy/breeze_tts_throughput.yaml
-          - vllm_omni/config/pipeline_registry.py
-          - vllm_omni/engine/arg_utils.py
-        commands:
-          - pytest -s -v tests/e2e/online_serving/test_breeze_tts_2.py -m 'advanced_model and tts' --run-level=advanced_model
-        mirror_hardwares: l4_1
-
       - label: "TTS · Qwen3-TTS CustomVoice Test"
         source_file_dependencies: tts_qwen3_tts_function
         commands:
diff --git a/.buildkite/cuda/test-ready.yml b/.buildkite/cuda/test-ready.yml
index 7a83acc0b..5fe28722f 100644
--- a/.buildkite/cuda/test-ready.yml
+++ b/.buildkite/cuda/test-ready.yml
@@ -198,25 +198,6 @@ steps:
             "
         mirror_hardwares: l4_1
 
-      - label: "TTS · Breeze-TTS-2 Voice Design"
-        timeout_in_minutes: 20
-        source_file_dependencies:
-          - tests/e2e/online_serving/test_breeze_tts_2.py
-          - tests/helpers/client.py
-          - vllm_omni/model_executor/models/breeze_tts_2/
-          - vllm_omni/model_executor/models/qwen3_tts/
-          - vllm_omni/model_executor/stage_input_processors/breeze_tts_2.py
-          - vllm_omni/entrypoints/openai/tts_adapters/breeze_tts_2.py
-          - vllm_omni/deploy/breeze_tts_2.yaml
-          - vllm_omni/deploy/breeze_tts_2_throughput.yaml
-          - vllm_omni/deploy/breeze_tts.yaml
-          - vllm_omni/deploy/breeze_tts_throughput.yaml
-          - vllm_omni/config/pipeline_registry.py
-          - vllm_omni/engine/arg_utils.py
-        commands:
-          - pytest -s -v tests/e2e/online_serving/test_breeze_tts_2.py -m 'core_model and tts' --run-level=core_model
-        mirror_hardwares: l4_1
-
       - label: "Diffusion · Wan22 Test"
         source_file_dependencies: diffusion_wan22_function
         commands:
diff --git a/tests/e2e/online_serving/test_breeze_tts_2.py b/tests/e2e/online_serving/test_breeze_tts_2.py
index fb469768c..6bb5b86dc 100644
--- a/tests/e2e/online_serving/test_breeze_tts_2.py
+++ b/tests/e2e/online_serving/test_breeze_tts_2.py
@@ -12,8 +12,7 @@ from tests.helpers.stage_config import get_deploy_config_path
 MODEL = "BreezeBlue/Breeze-TTS-2"
 
 pytestmark = [
-    pytest.mark.core_model,
-    pytest.mark.advanced_model,
+    pytest.mark.slow,
     pytest.mark.tts,
     pytest.mark.parametrize(
         "omni_server",