Claude Opus 5 has arrived in AWS GovCloud (US), with zero data retention!

Hi everyone, it's me, Shii-chan! Today I found great news for engineers working in government agencies and other heavily regulated industries!

AWS What's New aws.amazon.com

What was announced?

On AWS What's New, they announced that Claude Opus 5 is now available in AWS GovCloud (US). Claude Opus 5 is Anthropic's most advanced Opus model yet, and it's also compatible with zero data retention (ZDR).

It's available through these endpoints and regions:

• bedrock-runtime endpoint: both AWS GovCloud (US) regions
• bedrock-mantle endpoint: AWS GovCloud (US-West)

Why it matters

AWS GovCloud (US) is a special set of regions built for government agencies and regulated industries that need to meet strict data sovereignty and compliance requirements. In environments like these, wanting to use the newest, most capable model often clashes with needing to keep data tightly controlled and never leaving a governed boundary.

That's what makes this news significant: the top model in the Opus lineup, Claude Opus 5, is now available in GovCloud with ZDR support built in, for teams working under exactly those constraints.

What changes

Teams working in GovCloud can now understand and navigate codebases like an experienced engineer and write production-quality code, hand off agents that run for hours or even overnight while recovering from errors on their own, and run high-accuracy analysis over long documents. The gains are especially large for document-heavy enterprise work.

In short, teams under strict data governance can now get the same Opus 5 capabilities as everyone else, without compromising on compliance.

Dive Deep

Claude Opus 5 on Amazon Bedrock comes with a few notable characteristics.

• Zero data retention (ZDR) is enabled by default — you get top-tier intelligence while still meeting your data governance requirements
• Data stays within AWS infrastructure — with regional data residency support
• AWS-managed features are available too — you can use Bedrock's integrated services like Guardrails and Knowledge Bases as usual

The announcement didn't include specific pricing details. If you're curious, check the Amazon Bedrock documentation and the regional availability page.

Wrap-up

• Claude Opus 5 is now available in AWS GovCloud (US)
• It's accessible via bedrock-runtime (both regions) and bedrock-mantle (US-West)
• Zero data retention (ZDR) is enabled by default, meeting strict data governance needs
• You get the same coding, long-running agent, and document analysis capabilities as in other regions

If your team is looking to roll out AI agents in a government or regulated environment, this is exactly the news you've been waiting for!