update app.py

app.py

@@ -82,7 +82,7 @@ strategy_agent = Agent(
     ),
     backstory="A crypto strategist experienced in forming actionable plans.",
     verbose=False,
-    llm="gpt-5"
+    llm="gpt-4o-mini"
 )
 
 reporting_agent = Agent(
@@ -92,7 +92,7 @@ reporting_agent = Agent(
     ),
     backstory="A financial writer producing institutional-grade research.",
     verbose=False,
-    llm="gpt-5"
+    llm="gpt-4o-mini"
 )
 
 # ----------------------