Amazon Aurora Serverless now reaches 12 ACUs within one second during scale-up events, scaling up to 256 ACUs and down to zero when idle. This faster response time is designed for agentic AI applications that experience unpredictable traffic bursts and long idle periods. The feature is enabled by default on platform versions 3 and 4, while version 1 and 2 clusters can upgrade directly to version 4 without configuration changes.
- Initial scale-up to 12 ACUs in under a second reduces latency for bursty AI agent queries.
- Auto-scaling to zero optimizes costs for workloads with long idle windows between agent runs.
- Platform v3/v4 clusters get this behavior automatically; v1/v2 users must upgrade to v4.
- No configuration changes are required to benefit from the faster scaling capability.