OpenAI has rolled out pinned chats and a revamped projects system across its web and mobile platforms to help users organize ChatGPT conversations. Pinned chats allow users to fix important conversations to the top of the sidebar, available across web, Android, and iOS. Projects let users group related chats and files into customizable workspaces with per-project custom instructions. File upload limits vary by subscription tier: free-tier users can upload up to 5 files per project, while paid subscribers on higher tiers get access to between 25 and 40 file uploads per project, depending on their plan. Projects first became available to free-tier users on September 3, 2025, after previously being limited to paying subscribers. Pinned chats were available across web, Android, and iOS by December 2025. On March 26, 2026, OpenAI launched a simplified sidebar on iOS and Android, giving more screen real estate to pinned chats and projects. No cryptocurrency or blockchain elements are involved in these updates.