diff --git a/README.rst b/README.rst
index 1e0a3fb..7f8faf0 100644
--- a/README.rst
+++ b/README.rst
@@ -94,6 +94,7 @@ To interact with the various language models, you can use the following commands
 
 - For GPT-3, send a message with ``gpt-3`` and include your prompt.
 - For GPT-4o, send a message with ``gpt-4`` and include your prompt.
+- For GPT-4o cheapest version, send a message with ``gpt-4o-2024-08-06`` and include your prompt.
 - For GPT-4o-mini, send a message with ``gpt-mini`` and include your prompt.
 - For Claude-haiku, send a message with ``claude-haiku`` and include your prompt.
 - For Claude-sonnet, send a message with ``claude-sonnet`` and include your prompt.
diff --git a/app.py b/app.py
index e434422..1182057 100644
--- a/app.py
+++ b/app.py
@@ -47,6 +47,7 @@ system_users = [
     "gpt-4",
     "gpt-4o",
     "gpt-4o-mini",
+    "gpt-4o-2024-08-06",
     "gpt-4-1106-preview",
     "gpt-4-turbo-preview",
     "gpt-4-turbo",
@@ -430,13 +431,22 @@ def handle_message(data):
             )
         if "gpt-3" in data["message"]:
             gevent.spawn(chat_gpt, data["username"], room.name)
-        if "gpt-4" in data["message"]:
+
+        if "gpt-4o-2024-08-06" in data["message"]:
+            gevent.spawn(
+                chat_gpt,
+                data["username"],
+                room.name,
+                model_name="gpt-4o-2024-08-06",
+            )
+        elif "gpt-4" in data["message"]:
             gevent.spawn(
                 chat_gpt,
                 data["username"],
                 room.name,
                 model_name="gpt-4o",
             )
+
         if "gpt-mini" in data["message"]:
             gevent.spawn(
                 chat_gpt,