diff --git a/config.js b/config.js
index d30480e..69b8d16 100644
--- a/config.js
+++ b/config.js
@@ -1,5 +1,5 @@
 export const SEARCH_MODEL = "perplexity/sonar"
-export const REASON_MODEL = "anthropic/claude-sonnet-4.6"
+export const REASON_MODEL = "anthropic/claude-sonnet-4.5"
 export const JSON_ROLLING_WINDOW = 3
 export const REASON_MODEL_QUERY = "Send me a ntfy"
 export const REASON_MODEL_SYS_PROMPT = `You can contact me via ntfy by using the following format: