Update app.py

app.py

@@ -16,7 +16,7 @@ import requests, os, json
 from requests.adapters import HTTPAdapter, Retry
 from typing import List, Optional, Dict, Any
 llm = ChatOpenAI(
-    model="openai/gpt-4.1-mini",
+    model="openai/gpt-4.1-nano",
     openai_api_key="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",
     openai_api_base="https://models.github.ai/inference",  # 👈 이게 base_url 역할
 )