Announcing consumption-based pricing for short-term memory in Amazon Bedrock AgentCore Amazon Bedrock AgentCore memory now prices short-term memory (STM) based on the data your agents ingest, retrieve, and store, replacing the previous flat rate per event. AgentCore memory gives agents in-session context through short-term memory and persistent knowledge across sessions through long-term memory. With consumption-based pricing, developers building agents that write frequent, small events pay in proportion to what they use.