diff --git a/evalharness/config/default.yaml b/evalharness/config/default.yaml
index 93895c8..1620fbc 100644
--- a/evalharness/config/default.yaml
+++ b/evalharness/config/default.yaml
@@ -6,15 +6,19 @@ default:
 aime24:
   temperature: 1.0
   repeats: 12
+  max_tokens: 8192
 aime25:
   temperature: 1.0
   repeats: 12
+  max_tokens: 8192
 aime26:
   temperature: 1.0
   repeats: 12
+  max_tokens: 8192
 hmmt26:
   temperature: 1.0
   repeats: 12
+  max_tokens: 8192
 imo_answerbench:
   temperature: 1.0
 gpqa_diamond: