Mem0 is a specialized memory layer for AI applications that solves the statelessness problem of Large Language Models by enabling them to remember past interactions and user preferences across sessions. It intelligently stores, filters, and retrieves relevant information to provide context for AI conversations, supporting multimodal content and complex relationship structures while significantly reducing token usage and costs. Developers integrate Mem0 to create more personalized and contextually aware AI experiences across various applications including customer support, personal assistants, and AI agents, with options for both fully managed deployment and open-source self-hosting.