Update app.py

app.py

@@ -58,7 +58,7 @@ def init_vector_search() -> MongoDBAtlasVectorSearch:
     from langchain_community.vectorstores import MongoDBAtlasVectorSearch
 
     HF_TOKEN = os.getenv("HF_TOKEN", "").strip()
-    model_name = "sentence-transformers/all-MiniLM-L6-v2"
+    model_name = "thenlper/gte-small"
 
     try:
         st.write(f"🔌 Connecting to Hugging Face model: `{model_name}`")