Introducing Hindsight: Agent Memory That Works Like Human Memory

Hindsight is an open-source memory system for AI agents that mimics human memory by being contextual, time-aware, and capable of forming and updating beliefs, thereby allowing agents to genuinely learn from experiences rather than merely retrieving past fragments. Designed to address the limitations of stateless memory systems in AI, Hindsight enables agents to operate effectively over long time horizons by organizing memory into structured networks for facts, experiences, and observations, and by connecting memories through time and entities for multi-session reasoning. In evaluations, Hindsight demonstrated state-of-the-art performance on long-horizon conversational benchmarks, significantly surpassing existing memory systems and full-context baselines. The architecture is characterized by its ability to retain, recall, and reflect on structured, time-aware memory, enabling agents to accumulate experience and update beliefs over time. Open-sourced and available for integration into existing frameworks, Hindsight is also set to offer a hosted cloud version for teams seeking managed infrastructure and production-ready features.