v4.0.0
Current version
A Fresh New Lexika!
Our biggest update yet. Long-term memory evolves into Brains, the app is rebuilt on a local-first foundation for major speed gains, settings are fully revamped, and chat gets sharing, slash commands, shortcuts, a models gallery, and much more.
- Introducing Brains: long-term memory reimagined — create multiple brains in your workspace and connect or disconnect each one to any conversation
- Conversation sharing is here, and shared conversations can be forked by other users
- New / slash commands for quick, keyboard-first access to all app actions right from the chat input
- A dedicated models gallery page to explore every model in one place
- Models now show their knowledge cutoff, the date they were added, and benchmark scores
- Added prompt queues
- Models can now react to your messages!
- Keyboard shortcuts across the app, with a dedicated Shortcuts tab in Settings — including quick navigation through your last 9 conversations
- A new island design for the sidebar that you can pick in Settings!
- Manage your uploaded files in Settings — view, delete, and reuse already-uploaded attachments instead of uploading them again
- New Knowledge Center, plus a fresh onboarding experience with helpful coach marks
- Added a "Hide personal information" option to profile settings
- Mermaid diagrams are now supported in chat
- Date dividers in the chat UI so you always know when messages were sent
- User message quick peeks on the right side of the chat for jumping through a conversation
- Context compaction is now visible in the UI
- Choose your own code block theme in Settings
- New Download tab in Settings, and a reworked download page
- Your favorite models are now stored in your account and synced across all devices
- Data and state management rebuilt from the ground up with a local-first architecture
- APIs now load up to 3x faster, with major UI performance improvements across the app
- Settings fully revamped: preferences and settings are merged, new preference options were added, and mobile gets its own drawer design
- The chat composer is completely refactored: drafts are now stable, and the character limit is increased to 20,480 with non-destructive over-limit handling and clear feedback
- Each model now has its own set of supported reasoning effort options, with a brand-new effort selector UI
- Chat rendering is completely improved: refreshed code blocks, more stable math formulas, and better image viewing
- Council got updated presets and an improved model debates and answers pipeline
- The automatic model router now includes new models, drops legacy ones, and picks smarter
- Smarter context management, improved compaction logic, and better title generation for new conversations
- Improved sign-in and sign-up UI
- A refreshed home page and new-chat experience
- Laboratory is redesigned into a more practical dialog and drawer
- A smoother workspace invitation flow for guest users
- Major UX improvements across inputs, conversation renaming, workspace settings, and sidebar folders
- Improved landing page design and better UI stability when resizing
- Fixed cross-tab sync issues for user sessions
- Fixed a "workspace not found" issue when opening a conversation URL from a different workspace
- Fixed conversation branching issues, including stale caches and incorrect timestamps after branching
- Fixed support for text file attachments like Markdown, .py, and .js files