diff --git a/backends/arm/test/models/test_conformer.py b/backends/arm/test/models/test_conformer.py
index 3119145aef1..bda52fc078a 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()
 
@@ -132,22 +136,20 @@ 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,
     )
     pipeline.pop_stage("check_count.exir")
-
-    # TODO: MLETORCH-1167 Create Vulkan backend e2e tests
-    # pipeline.change_args(
-    #     "run_method_and_compare_outputs",
-    #     get_test_inputs(
-    #         TestConformer.dim, TestConformer.lengths, TestConformer.num_examples
-    #     ),
-    #     rtol=1.0,
-    #     atol=3.0,
-    # )
+    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 2000ac34794..8c25230f1a7 100644
--- a/backends/arm/test/models/test_dl3_arm.py
+++ b/backends/arm/test/models/test_dl3_arm.py
@@ -99,11 +99,11 @@ def test_dl3_vgf_INT():
         exir_op=[],
         tosa_version="TOSA-1.0+INT",
         use_to_edge_transform_and_lower=True,
+        run_on_vulkan_runtime=True,  # TODO: run on vulkan runtime
     )
-    # TODO: MLETORCH-1167 Create Vulkan backend e2e tests
-    # pipeline.change_args(
-    #     "run_method_and_compare_outputs", rtol=1.0, atol=1.0
-    # )
+    pipeline.change_args(
+        "run_method_and_compare_outputs", rtol=0.1, atol=0.1
+    )  # TODO: MLETORCH-1036 decrease tolerance
     pipeline.run()