diff --git a/nanochat/ui.html b/nanochat/ui.html
index e742a31..d062cbf 100644
--- a/nanochat/ui.html
+++ b/nanochat/ui.html
@@ -507,7 +507,7 @@
                         messages: messages,
                         temperature: currentTemperature,
                         top_k: currentTopK,
-                        max_tokens: 64
+                        max_tokens: 512
                     }),
                 });