diff --git a/backends/arm/test/models/test_conformer.py b/backends/arm/test/models/test_conformer.py
index dacf14dc0e7..6302528e4ae 100644
--- a/backends/arm/test/models/test_conformer.py
+++ b/backends/arm/test/models/test_conformer.py
@@ -36,6 +36,10 @@ class TestConformer:
     # .to_executorch step, i.e. after Arm partitioner.
     aten_ops = ["torch.ops.aten._assert_scalar.default"]
 
+    # TODO(MLETORCH-635): reduce tolerance
+    atol = 0.4
+    rtol = 0.4
+
     dim = 16
     num_examples = 10
     lengths = torch.randint(1, 100, (num_examples,), dtype=torch.int32)
@@ -65,7 +69,7 @@ def test_conformer_tosa_INT():
     pipeline = TosaPipelineINT[input_t](
         TestConformer.conformer,
         TestConformer.model_example_inputs,
-        aten_op=[],  # RemoveGraphAssertsPass is added in transform_for_annotation_pipeline to remove the assert ops
+        aten_op=[],
         exir_op=[],
         use_to_edge_transform_and_lower=True,
     )
@@ -75,8 +79,8 @@ def test_conformer_tosa_INT():
         get_test_inputs(
             TestConformer.dim, TestConformer.lengths, TestConformer.num_examples
         ),
-        rtol=1.0,
-        atol=3.0,
+        rtol=TestConformer.rtol,
+        atol=TestConformer.atol,
     )
     pipeline.run()
 
@@ -130,13 +134,20 @@ def test_conformer_vgf_INT():
     pipeline = VgfPipeline[input_t](
         TestConformer.conformer,
         TestConformer.model_example_inputs,
-        aten_op=[],  # RemoveGraphAssertsPass is added in transform_for_annotation_pipeline to remove the assert ops
+        aten_op=[],
         exir_op=[],
         tosa_version="TOSA-1.0+INT",
         use_to_edge_transform_and_lower=True,
-        run_on_vulkan_runtime=False,  # TODO: run on vulkan runtime
     )
     pipeline.pop_stage("check_count.exir")
+    pipeline.change_args(
+        "run_method_and_compare_outputs",
+        get_test_inputs(
+            TestConformer.dim, TestConformer.lengths, TestConformer.num_examples
+        ),
+        rtol=TestConformer.rtol,
+        atol=TestConformer.atol,
+    )
     pipeline.run()
 
 
diff --git a/backends/arm/test/models/test_dl3_arm.py b/backends/arm/test/models/test_dl3_arm.py
index c9eab58dda6..4c4e70e6f35 100644
--- a/backends/arm/test/models/test_dl3_arm.py
+++ b/backends/arm/test/models/test_dl3_arm.py
@@ -97,8 +97,11 @@ def test_dl3_vgf_INT():
         exir_op=[],
         tosa_version="TOSA-1.0+INT",
         use_to_edge_transform_and_lower=True,
-        run_on_vulkan_runtime=False,  # TODO: run on vulkan runtime
+        run_on_vulkan_runtime=True,  # TODO: run on vulkan runtime
     )
+    pipeline.change_args(
+        "run_method_and_compare_outputs", rtol=0.1, atol=0.1
+    )  # TODO: MLETORCH-1036 decrease tolerance
     pipeline.run()
 
 
diff --git a/backends/arm/test/models/test_mobilenet_v2_arm.py b/backends/arm/test/models/test_mobilenet_v2_arm.py
index f06e1b74bbd..460e27164be 100644
--- a/backends/arm/test/models/test_mobilenet_v2_arm.py
+++ b/backends/arm/test/models/test_mobilenet_v2_arm.py
@@ -125,7 +125,6 @@ def test_mv2_vgf_INT(per_channel_quantization):
         per_channel_quantization=per_channel_quantization,
         atol=0.25,
         qtol=1,
-        run_on_vulkan_runtime=False,
     )
     pipeline.run()
 
@@ -139,6 +138,5 @@ def test_mv2_vgf_FP():
         exir_op=[],
         tosa_version="TOSA-1.0+FP",
         use_to_edge_transform_and_lower=True,
-        run_on_vulkan_runtime=False,
     )
     pipeline.run()