diff --git a/modules/story-summary/generate/prompt.js b/modules/story-summary/generate/prompt.js
index 418a914..b57d99d 100644
--- a/modules/story-summary/generate/prompt.js
+++ b/modules/story-summary/generate/prompt.js
@@ -47,7 +47,7 @@ const SHARED_POOL_MAX = 10000;
 const CONSTRAINT_MAX = 2000;
 const ARCS_MAX = 1500;
 const EVENT_BUDGET_MAX = 5000;
-const RELATED_EVENT_MAX = 1000;
+const RELATED_EVENT_MAX = 500;
 const SUMMARIZED_EVIDENCE_MAX = 1500;
 const UNSUMMARIZED_EVIDENCE_MAX = 2000;
 const TOP_N_STAR = 5;