diff --git a/.github/scripts/review_design.py b/.github/scripts/review_design.py
index 5326c1d..ea6e383 100644
--- a/.github/scripts/review_design.py
+++ b/.github/scripts/review_design.py
@@ -24,7 +24,7 @@
 DESIGN_FILES = os.environ["DESIGN_FILES"]  # comma-separated
 PR_HEAD_SHA = os.environ["PR_HEAD_SHA"]
 
-MODEL = "claude-sonnet-4-5-20250514"
+MODEL = "claude-opus-4-6"
 
 # ── Skill Files ─────────────────────────────────────────────────────────────────