What is memory?

Types of memory in humans

• Sensory memory
• Short-term memory
• Long-term memory

Key characteristics of memory

• Capacity
• Duration
• Retrieval mechanisms

The Memory Problem in AI Agents

LLMs are stateless by nature — each call to the model sees only what’s in the current context window. For agents that operate over long tasks or across sessions, this creates a fundamental challenge: how do you give an agent a sense of continuity and accumulated knowledge?

Shorterm memory solutions

Long-term memory solutions