diff --git a/index.html b/index.html
index 68f056d..85b66bd 100644
--- a/index.html
+++ b/index.html
@@ -145,7 +145,7 @@
 <script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.9.0/build/highlight.min.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/localforage@1.10.0/dist/localforage.min.js"></script>
 <script>
-const DEFAULT_MODEL='openai/gpt-5',DEFAULT_API_KEY=''
+const DEFAULT_MODEL='openai/gpt-5-chat',DEFAULT_API_KEY=''
 const el=window.el=Object.fromEntries(['topbar','chat','messages','composer','input','sendBtn','suneBtnTop','suneModal','suneURL','settingsForm','closeSettings','cancelSettings','tabModel','tabPrompt','tabScript','panelModel','panelPrompt','panelScript','set_model','set_temperature','set_top_p','set_top_k','set_frequency_penalty','set_presence_penalty','set_repetition_penalty','set_min_p','set_top_a','set_max_tokens','set_verbosity','set_reasoning_effort','set_system_prompt','deleteSuneBtn','sidebarLeft','sidebarOverlayLeft','sidebarBtnLeft','suneList','newSuneBtn','userMenuBtn','userMenu','accountSettingsOption','sunesImportOption','sunesExportOption','threadsImportOption','threadsExportOption','importInput','sidebarBtnRight','sidebarRight','sidebarOverlayRight','threadList','closeThreads','threadPopover','sunePopover','footer','attachBtn','attachBadge','fileInput','htmlEditor','extensionHtmlEditor','htmlTab_index','htmlTab_extension','suneHtml','accountSettingsModal','accountSettingsForm','closeAccountSettings','cancelAccountSettings','set_master_prompt','set_provider','set_api_key_or','set_api_key_oai','set_title_model','copySystemPrompt','pasteSystemPrompt','copyHTML','pasteHTML','accountTabGeneral','accountTabAPI','accountPanelGeneral','accountPanelAPI','set_gh_token','importAccountSettings','exportAccountSettings','importAccountSettingsInput'].map(id=>[id,document.getElementById(id)]))
 const icons=()=>window.lucide&&lucide.createIcons()
 const haptic=()=>/android/i.test(navigator.userAgent)&&navigator.vibrate?.(1)