diff --git a/deepinfer/environ.py b/deepinfer/environ.py
index 9c6fc9e..b880f7c 100644
--- a/deepinfer/environ.py
+++ b/deepinfer/environ.py
@@ -115,7 +115,7 @@ class envs:
     # Neuron only: cut the region graphs further at the stage boundaries marked by neuron_ops.regions.split().
     DEEPINFER_NEURON_REGION_SPLIT = EnvVar.bool(default=False)
     # Neuron only: one region graph per decoder layer (attention half + MoE) instead of two.
-    DEEPINFER_NEURON_REGION_LAYER = EnvVar.bool(default=False)
+    DEEPINFER_NEURON_REGION_LAYER = EnvVar.bool(default=True)
     # Neuron only: split the region graphs of prefill chunks (steps of more than one row) regardless.
     DEEPINFER_NEURON_REGION_SPLIT_PREFILL = EnvVar.bool(default=True)
     # Neuron only: synchronize around every region graph call and log per-kind times each decode step (profiling).