Why horizontal tabs? Vertical is navigation. Organizational. Hierarchical. A tree. It's "history". You don't need it on screen all the time. Horizontal is the working set. The threads that are live. Always visible. Give it icons, colors, status. Context at a glance. In apps like ChatGPT, Claude Code or T3 Code, horizontal space is expensive. Tabs at the top let you tuck away the sidebar and leave more room for the right panel: preview, browser, code view. And you still see what's running,…

shadcn@shadcn3d ago

Have to say, ChatGPT is a beautiful app. @edbayes and team amazing job again ✔️ sidebar is goated. ✔️ we are moving closer to the slack layout. told ya. ✔️ I saw a bookmark action. thank you wishlist → horizontal tabs. trust me. → chatgpt/codex to be replaced → chatgpt = new chat, codex = new task → bookmarks icon in sidebar what else