diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8085c04d5eb7ce87f92da76b2ac04f204746cf6f..72820f2b14e09efd74226d35c23d72ae27f7cdec 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,6 +6,7 @@ stages:
   - ndk_versions_compatible_tests
   - ops_test
   - api_test
+  - python_tools_tests
   - ops_benchmark
   - extra_tests
 
@@ -91,4 +92,14 @@ ndk_versions_compatible_tests:
       fi
       done
     - export ANDROID_NDK_HOME=$DEFAULT_NDK_PATH
-    - export PATH=$ANDROID_NDK_HOME:$PATH
\ No newline at end of file
+    - export PATH=$ANDROID_NDK_HOME:$PATH
+
+python_tools_tests:
+  stage: python_tools_tests
+  script:
+    - pwd
+    - rm -rf mace-models
+    - GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no" git clone git@v9.git.n.xiaomi.com:deep-computing/mace-models.git
+    - CONF_FILE=mace-models/mobilenet-v2/mobilenet-v2.yml
+    - sh -c "python tools/converter.py build --config=${CONF_FILE} --disable_tuning && python tools/converter.py run --config=${CONF_FILE} --round=1 --validate" || exit 1
+    - rm -rf mace-models
diff --git a/mace/ops/winograd_convolution_benchmark.cc b/mace/ops/winograd_convolution_benchmark.cc
index 615e63264c24a1e0c992acfb3f1e9f8d6076b715..37f7d960ec8e51b5eab93069a15562ef58d99dc0 100644
--- a/mace/ops/winograd_convolution_benchmark.cc
+++ b/mace/ops/winograd_convolution_benchmark.cc
@@ -115,8 +115,6 @@ MACE_BM_WINOGRAD_CONV(1, 56, 56, 256, 256, 2);
 MACE_BM_WINOGRAD_CONV(1, 56, 56, 256, 256, 4);
 MACE_BM_WINOGRAD_CONV(1, 128, 128, 128, 256, 2);
 MACE_BM_WINOGRAD_CONV(1, 128, 128, 128, 256, 4);
-MACE_BM_WINOGRAD_CONV(1, 256, 256, 256, 256, 2);
-MACE_BM_WINOGRAD_CONV(1, 256, 256, 256, 256, 4);
 
 }  // namespace test
 }  // namespace ops