Cogitae is a native macOS application for working with large language models like Claude and ChatGPT. It's built for people who use AI seriously and want more than a browser tab.
Key features
- Self-aware The app understands itself. Ask it to list conversations, find messages, create a note, install a plugin or find an MCP server. It can tell you how to accomplish what you want. It also understands its internals, so can even help troubleshoot novel issues in real time.
- Multiple AI providers Switch between Anthropic, OpenAI, Google, and others mid-conversation. Bring your own API keys.
- Conversation branching Explore different paths without losing context. Edit any message and fork the conversation like Git.
- Bookmarks and navigation Save important moments, jump between them, visualize conversation structure with an interactive graph.
- Rich Markdown Rendering LaTeX equations, tables can be rendered as different types of charts, Mermaid diagrams, syntax highlighting, diffs, one-click copy, tools for reading/writing files directly and interactive check lists.
- macOS integration Floating HUD mode, global hotkey, Spotlight-style launcher. Ask Cogitae to send the last LLM response to your coworker in an email. It will do exactly that.
- MCP and plugin support Connect to databases, APIs, and external tools through downloadable plugins (tools that can be used with any LLM that uses tools) and the Model Context Protocol.
- Privacy-focused Your conversations stay on your Mac. No accounts, no telemetry, no subscriptions.