AWS announced on October 15, 2026 that Web Search on Amazon Bedrock AgentCore is now available in four additional AWS Regions, including AWS GovCloud (US-West).
Newly supported Regions
The announcement names:
- US East (Ohio)
- US West (Oregon)
- Asia Pacific (Sydney)
- AWS GovCloud (US-West)
AWS describes Web Search as a fully managed tool that provides AI agents with current information from the web for research, summarization and question answering. This is a regional availability update to that tool.
Evaluate latency across the whole workflow
For engineers, the practical change is a wider choice of Regions for the web-retrieval step in an agent workflow. AWS says retrieving information closer to applications and end users can lower latency, but the announcement provides no measurements.
Treat that claim as a reason to evaluate placement, not as a quantified performance guarantee. Before moving a workload, compare end-to-end response times, including model inference and other tool calls. Measure the retrieval step separately to determine whether any improvement there meaningfully changes the total response time.
Review GovCloud suitability for each workload
AWS positions the GovCloud (US-West) addition as an option for government workloads with compliance and data-residency requirements.
Treat regional availability as a starting point for review, not as a workload-specific compliance determination. Before adopting the tool, validate the proposed data handling against your workload’s compliance and residency obligations. The GovCloud expansion named in this announcement is specifically US-West.
See the original announcement for availability and release details.