Error with hosted HF model

app.py

@@ -337,8 +337,10 @@ st.sidebar.image("img/diagnostic.jpg")
 
 oai_api_key = st.sidebar.text_input("`OpenAI API Key:`", type="password")
 ant_api_key = st.sidebar.text_input("`(Optional) Anthropic API Key:`", type="password")
+hf_api_key = st.sidebar.text_input("`(Optional) HuggingFace API Token:`", type="password")
 os.environ["OPENAI_API_KEY"] = oai_api_key
 os.environ["ANTHROPIC_API_KEY"] = ant_api_key
+os.environ["HUGGINGFACEHUB_API_TOKEN"] = hf_api_key
 
 with st.sidebar.form("user_input"):
 
@@ -359,8 +361,9 @@ with st.sidebar.form("user_input"):
     model = st.radio("`Choose model`",
                      ("gpt-3.5-turbo",
                       "gpt-4",
-                      "anthropic",
-                      "flan-t5-xl"),
+                      "anthropic"),
+                      # Error raised by inference API: Model google/flan-t5-xl time out
+                      #"flan-t5-xl"),
                      index=0)
 
     retriever_type = st.radio("`Choose retriever`",