Mem is a cloud-native knowledge management platform that uses large language models (LLMs) to power its core features: semantic search, automatic tagging, and AI-assisted writing. The app ingests all user-created notes and applies vector-based similarity matching to surface related content and generate contextually relevant suggestions. Mem's AI writing assistant ("Mem AI") uses the contents of your workspace as grounding context for generation, reducing hallucination by anchoring responses to your personal data. The platform is available as a web app, macOS app, iOS/Android app, and Chrome extension, with integrations for Slack and email capture.