An AI That Truly Remembers You

Yes! Ditto implements the Model Context Protocol (MCP) as both a server and client. Connect Ditto's MCP server to ChatGPT, Claude, Claude Code, Cursor, Cline, Windsurf, or any MCP-compatible tool to give them access to your persistent memory and knowledge graph. Your memory works across all your AI tools seamlessly. Set up MCP in 2 minutes →

Unlike traditional AI assistants that treat each conversation as isolated, HeyDitto builds a comprehensive understanding of who you are through sophisticated memory systems and by getting to know your unique personality. It learns your preferences, remembers your context, and adapts its responses to match your communication style and decision-making patterns. Plus, with bidirectional MCP integration, your memory works across ChatGPT, Claude, Cursor, and any MCP-compatible tool.

HeyDitto's agentic memory system functions like an artificial hippocampus, storing and organizing all your interactions into a rich knowledge graph. It includes short-term memory (configurable 0-10 recent conversations) and sophisticated long-term memory with up to 5 levels of hierarchical chaining. The system uses vector-based similarity matching and semantic search to surface the most relevant information when you need it, automatically categorizing memories by Subjects, People, Places, Things, and Ideas.

HeyDitto develops a deep understanding of who you are through natural conversations and shared experiences. By analyzing your communication patterns, preferences, and decision-making style across multiple personality frameworks, it builds a comprehensive picture of your unique nature. This happens organically as you chat - no formal questionnaires needed. HeyDitto learns your core qualities, how you see the world, and your connection style, enabling it to respond in ways that feel natural and authentic to who you are.

HeyDitto provides access to the best AI models from leading providers including OpenAI (GPT-5.2), Anthropic (Claude Sonnet, Haiku), Google (Gemini 3 Flash/Pro, Gemini 2.5 Flash), Moonshot (Kimi K2.5), xAI (Grok-4), and more. You can switch models mid-conversation, and transparent per-token pricing via the Ditto Token system means you always know what you are paying.

HeyDitto takes your privacy seriously with a privacy-first design that processes data locally where possible. All conversations and memories are protected with industry-standard security measures, and we maintain strict confidentiality protocols. Your personal information is never sold or shared with third parties. We use transparent data handling practices and give you full control over your memory retention and data management.

Yes! Ditto has native Google Workspace integration with 22 tools across Gmail, Google Calendar, Google Docs, Google Sheets, and Google Drive. You can search and send emails, manage calendar events, create and edit documents and spreadsheets, and browse Drive files — all through natural conversation. Connection uses secure per-user OAuth with AES-256 encrypted token storage. Available on Flex, Plus, and Pro plans.

Ditto Threads are persistent chat sessions that never go stale. Unlike traditional AI chats that lose context after a session ends, Threads let you return to any conversation and pick up exactly where you left off — with full memory context intact. You can attach subjects, memories, and notes to a Thread so the AI always has the right context for that topic or project. Manage all your Threads from a sidebar for easy switching. Learn more about Threads →

Thought Trains are user-curated context collections that give you explicit control over what the AI focuses on during conversations. You arrange subjects, memories, and freeform notes on a 2D canvas, draw connections between them, and activate a Train to inject that context into Ditto's system prompt. Use them for project briefs, meeting prep, study plans, or any scenario where you want the AI to focus on specific knowledge. No other AI assistant offers this level of user-controlled context steering.

Yes! Ditto has native apps for both iOS and Android, built with Capacitor for full feature parity with the web app. You get persistent memory, Threads, voice input, image uploads, and all AI model options on your phone. Ditto is also available as a Progressive Web App (PWA) that you can install from your browser on any device.