In artificial intelligence, 'memory' refers to an AI system's ability to retain and use information from previous interactions or data within a specific context. This capability allows AI models to provide more personalized, coherent, and context-aware responses by recalling relevant details from past conversations or experiences. Memory in AI can be short-term, remembering information only during a single session, or long-term, maintaining knowledge across multiple sessions. Effective memory enables AI systems to improve user experience, adapt to individual needs, and perform complex tasks that require context retention.