Update main.py

main.py

@@ -47,7 +47,7 @@ class ChatInput(BaseModel):
 
 # --- 4. Gemini API Setup ---
 GEMINI_API_KEY = os.getenv("GEMINI_API_KEY")
-GEMINI_URL = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-lite:generateContent?key={GEMINI_API_KEY}"
+GEMINI_URL = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key={GEMINI_API_KEY}"
 
 # --- 5. Endpoints ---
 @app.get("/")