Native MacOS AI chat app designed for power and simplicity. Access multiple AI models, Auto Mode selects the best model, automatically organize your chats, and manage everything effortlessly in a clean, Mac-native interface.
Download MacOS Beta
Using your own API keys, Chatastic integrates the best AI models directly into your MacOS workflow.
Works seamlessly on your Mac, optimized for performance. And your chats stay private: stored on your Mac, shared only with the AI model you choose.
Auto Mode intelligently picks the best AI model for each chat, balancing speed, cost, and capability automatically.
Organize chats effortlessly with manual and automatic tagging. Find any conversation quickly in your library.
Launch a quick chat window instantly, no matter what app you're using.
Access real-time web info instantly and switch to advanced reasoning for deeper insights, optimizing your Mac AI workflows effortlessly. on available models
Set custom AI instructions or personalities for specific chats using Personas.
A clean, intuitive design that makes chatting productive and enjoyable.
Manage multiple conversations side-by-side in separate windows.
Discuss your files and images directly within your chats.
Locate any conversation instantly with powerful search, auto-tagging, and a dedicated library view, making your chat history easy to manage and retrieve.
