diff --git a/backend/app/core/config.py b/backend/app/core/config.py
index 79afe728..972211d9 100644
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -87,7 +87,7 @@ class Settings(BaseSettings):
     # Model tier routing — maps action types to model tiers
     AI_MODEL_TIERS: dict[str, str] = {
         "fast": "claude-haiku-4-5-20251001",
-        "standard": "claude-sonnet-4-6-20250514",
+        "standard": "claude-sonnet-4-6",
     }
 
     ACTION_MODEL_MAP: dict[str, str] = {