Update app.py

app.py

@@ -19,13 +19,16 @@ embed_model = SentenceTransformer("all-MiniLM-L6-v2")
 
 # ✅ API keys and config
 API_KEY = os.environ.get("OPENROUTER_API_KEY")
-MODEL = "nousresearch/deephermes-3-llama-3-8b-preview:free"
+MODEL = "nousresearch/deephermes-3-llama-3-8b-preview:free"  # Updated model
 
 app = FastAPI()
 
-# ✅ Greeting checker
+# ✅ Greeting checker with added variations
 def is_greeting(text):
-    greetings = ["hi", "hello", "hey", "good morning", "good afternoon", "good evening"]
+    greetings = [
+        "hi", "hello", "hey", "good morning", "good afternoon", "good evening",
+        "howdy", "yo", "sup", "greetings", "what's up", "hey there"
+    ]
     return any(g in text.lower() for g in greetings)
 
 # ✅ Context fetcher