Anthropic · Microsoft · Claude · Google · Amazon · Claude Code · Anthropic
To make the transition smooth, eligible customers will receive ZDR on Fable 5 and Fable 5.1 until EFS is ready
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Anthropic developed EFS in close collaboration with more than 100 customers in industries like financial services, healthcare, manufacturing, telecom, law, retail, and the public sector, and with their cloud partners at Amazon Web Services, Google Cloud, and Microsoft Azure.
Key facts
- To make the transition smooth, eligible customers will receive ZDR on Fable 5 and Fable 5.1 until EFS is ready
- The team developed EFS in close collaboration with more than 100 customers in industries like financial services, healthcare, manufacturing, telecom, law, retail, and the public sector, and with their cloud
- EFS will be supported on Claude Code, Claude Enterprise, the Claude Platform, Amazon Bedrock, Claude Platform on AWS, Google’s Agent Platform, and Microsoft Foundry
- For this reason, they introduced 30-day data retention starting with Fable 5
Summary
Today they're announcing Enterprise Frontier Safeguards (EFS), a solution that combines the privacy of zero data retention (ZDR) with state-of-the-art safeguards for detecting misuse. EFS will be supported on Claude Code, Claude Enterprise, the Claude Platform, Amazon Bedrock, Claude Platform on AWS, Google’s Agent Platform, and Microsoft Foundry. Mythos-class models, like Claude Fable 5.1, represent a major increase in intelligence and agentic capabilities. Over the last few months, they've seen substantial evidence of attempted misuse of AI models.