diff --git a/config/prod-root-config.yaml b/config/prod-root-config.yaml
index 926b408..e758f86 100644
--- a/config/prod-root-config.yaml
+++ b/config/prod-root-config.yaml
@@ -53,7 +53,7 @@ chains:
       AnthropicLLM:
         class: AnthropicLLM
         kwargs:
-          model_name: claude-3-opus-20240229
+          model_name: claude-3-sonnet-20240229
           temperature: 1 # not sure if 1 is best value? for now keeping consistent with prior settings.
       OpenAILLM:
         class: OpenAILLM