diff --git a/src/app/chat/[id]/page.tsx b/src/app/chat/[id]/page.tsx
index 6c87f07..856b554 100644
--- a/src/app/chat/[id]/page.tsx
+++ b/src/app/chat/[id]/page.tsx
@@ -479,20 +479,22 @@ export default function ChatPage({ params }: PageProps) {
               )}
             </div>
             <div className="flex items-center gap-2">
-              {/* 思考模式开关 */}
-            <button
-              onClick={handleThinkingToggle}
-              className={cn(
-                'flex items-center gap-2 px-3 py-1.5 text-sm rounded-lg transition-colors',
-                enableThinking
-                  ? 'bg-[var(--color-primary-light)] text-[var(--color-primary)]'
-                  : 'text-[var(--color-text-secondary)] hover:bg-[var(--color-bg-hover)]'
-              )}
-              title={enableThinking ? '关闭思考模式' : '开启思考模式'}
-            >
-              <Clock size={16} />
-              <span>思考</span>
-            </button>
+              {/* 思考模式开关 - 只在非 Codex 模型时显示 */}
+            {!selectedModelId.toLowerCase().includes('codex') && (
+              <button
+                onClick={handleThinkingToggle}
+                className={cn(
+                  'flex items-center gap-2 px-3 py-1.5 text-sm rounded-lg transition-colors',
+                  enableThinking
+                    ? 'bg-[var(--color-primary-light)] text-[var(--color-primary)]'
+                    : 'text-[var(--color-text-secondary)] hover:bg-[var(--color-bg-hover)]'
+                )}
+                title={enableThinking ? '关闭思考模式' : '开启思考模式'}
+              >
+                <Clock size={16} />
+                <span>思考</span>
+              </button>
+            )}
 
             <button
               className="flex items-center gap-2 px-3 py-1.5 text-sm text-[var(--color-text-secondary)] hover:bg-[var(--color-bg-hover)] rounded-lg transition-colors"