diff --git a/src/chat/client.rs b/src/chat/client.rs
index 2a4cf4d..0adf83d 100644
--- a/src/chat/client.rs
+++ b/src/chat/client.rs
@@ -36,7 +36,13 @@ impl Default for Limits {
     fn default() -> Self {
         Self {
             connect: Duration::from_secs(10),
-            response: Duration::from_secs(60),
+            // This waits for the first bytes of the reply, and a
+            // reasoning model spends its whole deliberation before any
+            // byte reaches the wire: the provider holds the stream
+            // silent while the model thinks, so a high reasoning effort
+            // makes minutes of silence normal. Like `body`, this is a
+            // bound on a dead provider, not a budget for the model.
+            response: Duration::from_secs(300),
             // ureq measures this over the whole body, and the body of a
             // streamed turn is the whole turn. So this is a bound on a
             // dead connection, not a budget for the model: a healthy turn