Amazon tells that agent sessions start as much as 15 times faster

Amazon updated AgentCore runtime, the managed system in Amazon Bedrock AgentCore that operates AI agents. The team does not make the servers. Each session operates in its own sealed micro virtual machine (a small isolated computer). Amazon tells that sessions start as much as 15 times faster and can use 4 times more processing power. It tells that agents that wait use as much as 68% less memory.

What is new

A session can use as much as 8 virtual processors and 32 GB of memory. An agent that waits goes to zero, and the system gets back memory in some minutes. Teams with always-on agents pay a minimum memory baseline and can go to 4 times that baseline.

The numbers

Customers that Amazon quotes give these results:

• Coinbase: start time went from almost a minute to less than 5 seconds.
• Zuora: memory for each use went down by about 60%.
• Mission Cloud: cost for each use went down by 17%.

What is not known

The numbers come from Amazon and its customers. The source gives no test by a different group and no prices.

Insight: Amazon and Akamai both sell the sealed room for agents

Akamai launched its Agent Sandbox as a test version on 27 October 2026. Amazon adds fast start and payment only for work, and tells that this makes the finance discussion easier. This reads as a race to own the host for agents. The first host a team adopts can keep its agents. Monitor which host wins the first large production teams.