diff --git a/app/src/main/java/eu/faircode/email/OpenAI.java b/app/src/main/java/eu/faircode/email/OpenAI.java
index 1254634aa3..c4c4bf7d18 100644
--- a/app/src/main/java/eu/faircode/email/OpenAI.java
+++ b/app/src/main/java/eu/faircode/email/OpenAI.java
@@ -47,7 +47,7 @@ import java.util.Map;
 import java.util.Objects;
 
 public class OpenAI {
-    static final String DEFAULT_MODEL = "gpt-4o";
+    static final String DEFAULT_MODEL = "gpt-5.1";
     static final float DEFAULT_TEMPERATURE = 0.5f;
     static final String DEFAULT_SUMMARY_PROMPT = "Summarize the following text:";
     static final String DEFAULT_ANSWER_PROMPT = "Answer this message:";