Local-first · Privacy-first · Your data, your machine
Eidolon builds a structured, persistent model of who you are — your values, goals, tensions, and circumstances — through conversation. Every exchange deepens its understanding. Nothing ever leaves your machine.
You've had this conversation before. You explain your background, your constraints, your preferences — again. Cloud AI assistants treat every session as a blank slate. They optimise for engagement, not understanding.
And the ones that do remember? They store your most intimate thoughts on someone else's servers, governed by someone else's privacy policy.
68 categories across 11 life themes. Eidolon maps your values, goals, tensions, and patterns — automatically, from every conversation.
Chat with locally-hosted AI models that use your accumulated personal model as context. The more you talk, the deeper it understands.
Markdown editor with live preview and Mermaid diagrams. Eidolon learns from your writing — not just your conversations.
Monthly calendar, kanban task board, and AI-powered email extraction. Events and tasks feed the personal model too.
Connect your Gmail. Engage with emails and Eidolon extracts observations, calendar events, and tasks — without storing your inbox.
Tone auditing catches hostile responses. Context leak detection prevents data dumps. SQL injection guards protect your database.
A narrative synthesis of everything Eidolon has learned about you. Read yourself as the system sees you. Dispute what you disagree with.
Browse every observation. Search, filter, dispute. Export everything in JSON or Parquet. Your data is always yours to inspect and take.
No special commands. No structured input. Just have conversations about what matters to you — your work, your goals, your tensions, your life.
After every exchange, a small extraction model analyses what you said and maps inferences to a structured taxonomy of 68 categories across 11 life themes.
Observations accumulate. Tensions are recorded. Revisions are tracked. The personal model grows with every interaction — chat, notes, calendar, email.
Your personal model is injected as context into every conversation. Eidolon doesn't just respond — it responds as someone who knows you.
Eidolon runs entirely on your computer. Your conversations, observations, personal model, and email credentials are stored in a local DuckDB database. No data is transmitted to any cloud service. No telemetry. No analytics. No phone-home. Ever.
Both tiers include the same software with all features. The Professional licence
adds commercial use rights and priority support.
14-day money-back guarantee. No questions asked. No subscription, no recurring charges.
Before installing, you need:
Downloads are available immediately after purchase. You'll receive a link to download Eidolon for all platforms (Windows, macOS, Linux).
After download:
Extract → pip install -r requirements.txt → ollama pull gemma3:4b → Double-click Eidolon.bat (Windows) or run ./Eidolon.sh (macOS/Linux)