Twin Lab
A personal, personalized AI assistant that communicates in your style. It learns how you write to each person and drafts replies in your own voice. You stay in control: it suggests, you decide.
- Designed as one inbox across your messaging apps: WhatsApp, Telegram, Signal, SMS and email
- Separate memory and writing style for every contact
- Inspectable context: see exactly what the AI is given before each draft
- Human-in-the-loop: in the current prototype, every message needs your approval
- Local-first storage and quality metrics on accepted vs. edited drafts
- Reply drafting runs on the Claude API, live in the prototype
- Quality eval: 29 of 30 drafts judged ready to send, across 3 languages, with prompt-injection and privacy traps
Next: Android app that reads incoming messages from every app through on-device notifications, then a closed beta.
