adding gpt4, gpt4-turbo

README.md

@@ -41,7 +41,7 @@ The conversation is kept in memory by a buffered sliding window memory (top 4 mo
 ## Getting started
 
 - Select the model+embedding combination you want to use 
-- If using OpenAI, enter your API Key ([Open AI](https://platform.openai.com/account/api-keys)~~ or [Huggingface](https://huggingface.co/docs/hub/security-tokens))~~. 
+- If using gpt3.5-turbo, gpt4 or gpt4-turbo, enter your API Key ([Open AI](https://platform.openai.com/account/api-keys)). 
 - Upload a scientific article as a PDF document. You will see a spinner or loading indicator while the processing is in progress. 
 - Once the spinner disappears, you can proceed to ask your questions
 

streamlit_app.py

@@ -208,10 +208,13 @@ def play_old_messages():
 with st.sidebar:
     st.session_state['model'] = model = st.selectbox(
         "Model:",
-        options={
-            "chatgpt-3.5-turbo": "ChatGPT 3.5 Turbo + Ada-002-text (embeddings)",
-            "mistral-7b-instruct-v0.1": "Mistral-7B-Instruct-V0.1 + Sentence BERT (embeddings) :free:",
-            "zephyr-7b-beta": "Zephyr-7B-beta + Sentence BERT (embeddings) :free:"},
+        options=[
+            "chatgpt-3.5-turbo",
+            "mistral-7b-instruct-v0.1",
+            "zephyr-7b-beta",
+            "gpt-4",
+            "gpt-4-1106-preview"
+        ],
         index=2,
         placeholder="Select model",
         help="Select the LLM model:",