diff --git a/apps/server/src/orchestration/Layers/ProviderRuntimeIngestion.ts b/apps/server/src/orchestration/Layers/ProviderRuntimeIngestion.ts
index ed58664b8f..b4f474dfdf 100644
--- a/apps/server/src/orchestration/Layers/ProviderRuntimeIngestion.ts
+++ b/apps/server/src/orchestration/Layers/ProviderRuntimeIngestion.ts
@@ -255,7 +255,7 @@ function runtimeEventToActivities(
           kind: "runtime.error",
           summary: "Runtime error",
           payload: {
-            message: truncateDetail(message),
+            message: truncateDetail(message, 512),
           },
           turnId: toTurnId(event.turnId) ?? null,
           ...maybeSequence,
diff --git a/apps/web/src/components/chat/ThreadErrorBanner.tsx b/apps/web/src/components/chat/ThreadErrorBanner.tsx
index b48412453c..4eee8d8c6f 100644
--- a/apps/web/src/components/chat/ThreadErrorBanner.tsx
+++ b/apps/web/src/components/chat/ThreadErrorBanner.tsx
@@ -14,7 +14,7 @@ export const ThreadErrorBanner = memo(function ThreadErrorBanner({
     <div className="pt-3 mx-auto max-w-3xl">
       <Alert variant="error">
         <CircleAlertIcon />
-        <AlertDescription className="line-clamp-3" title={error}>
+        <AlertDescription className="line-clamp-6" title={error}>
           {error}
         </AlertDescription>
         {onDismiss && (