Update app/core/model_loader.py

app/core/model_loader.py

@@ -13,9 +13,9 @@ logger = logging.getLogger(__name__)
 
 STATS_FILE = "usage_stats.json"
 
-# Updated active Groq production models matching current dashboard IDs
-DEFAULT_MODEL = "llama-3.1-8b"
-FALLBACK_MODEL = "llama-3.3-70b"
+# Fixed: Updated to active Groq production model IDs to prevent 404 errors
+DEFAULT_MODEL = "llama-3.1-8b-instant"
+FALLBACK_MODEL = "llama-3.3-70b-versatile"
 
 class LLMSingleton:
     _instance = None