An Organizational Second Brain: Building an AI That Learns From Experts

Meta's engineering team has developed an AI agent that functions as a 'second brain' for organizations, integrating a structured, auditable knowledge architecture to preserve and share expert knowledge. The agent is designed to act as a secondary expert in a domain, making deep specialist knowledge accessible to all employees. The system's novelty lies in its two-layer integration, which separates knowledge for auditability and learning.

We’ve built an AI agent that acts as a secondary expert for a given domain, making deep specialist knowledge readily available and preserved for anyone in an organization to access, share, and build upon. This is not a typical domain-specific agent. Its novelty comes from integrating two layers: A structured, auditable knowledge architecture separates what ... The post An Organizational Second Brain: Building an AI That Learns From Experts https://engineering.fb.com/2026/09/02/ml-applications/organizational-second-brain-ai-learns-from-experts/ appeared first on Engineering at Meta https://engineering.fb.com .