diff --git a/frontend/src/app/workspace/chats/[thread_id]/page.tsx b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
index 901283c8..750bc1d6 100644
--- a/frontend/src/app/workspace/chats/[thread_id]/page.tsx
+++ b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
@@ -255,7 +255,7 @@ export default function ChatPage() {
       <div
         className={cn(
           "m-auto flex h-screen min-h-svh overflow-hidden rounded-t-[20px] transition-[width] duration-300 ease-in-out",
-          artifactsOpen ? "w-full" : "w-[50%]",
+          artifactsOpen ? "w-full" : "w-[70%]",
         )}
       >
         <div className="relative flex size-full min-h-0 justify-between rounded-t-[20px]">