diff --git a/api/ask_astro/settings.py b/api/ask_astro/settings.py
index d18d226c..e4ff83b8 100644
--- a/api/ask_astro/settings.py
+++ b/api/ask_astro/settings.py
@@ -15,10 +15,10 @@
 
 # Environment variables for ConversationalRetrievalChain Load QA Chain
 CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_TEMPERATURE = float(
-    os.environ.get("CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_TEMPERATURE", "0.5")
+    os.environ.get("CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_TEMPERATURE", "0.3")
 )
 CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_DEPLOYMENT_NAME = os.environ.get(
-    "CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_DEPLOYMENT_NAME", "gpt-4-32k"
+    "CONVERSATIONAL_RETRIEVAL_LOAD_QA_CHAIN_DEPLOYMENT_NAME", "gpt-4-128k"
 )
 
 SHOW_SERVICE_MAINTENANCE_BANNER = os.environ.get("SHOW_SERVICE_MAINTENANCE_BANNER", "False").upper() == "TRUE"