Anthropic to Move Required AI Safety Logs Into Enterprise Customers’ Clouds

Anthropic plans to let enterprise customers store required safety-monitoring data in their own cloud environments, easing a June 9, 2026 policy that removed zero-data-retention access for its Claude Fable 5 and Mythos 5 models. The change, expected in fall 2026, keeps the 30-day retention window but shifts storage to customer infrastructure, following pushback from more than 100 customers including Salesforce, according to Reuters and The Decoder.

Anthropic to Move Required AI Safety Logs Into Enterprise Customers’ Clouds - Anthropic’s June 9, 2026 policy required prompts and outputs from covered models, including Claude Fable 5 and Mythos 5, to be retained for at least 30 days. 1 https://privacy.claude.com/en/articles/15425996-data-retention-practices-for-covered-models - The planned replacement will keep the 30-day safety-monitoring window but let customers retain the data in their own cloud infrastructure. 2 https://www.investing.com/news/stock-market-news/anthropic-plans-to-change-enterprise-data-retention-policy-source-says-4870349 - Anthropic has worked with more than 100 customers, including Salesforce, while Microsoft restricted employee access to Fable 5 over the original policy. 2 https://www.investing.com/news/stock-market-news/anthropic-plans-to-change-enterprise-data-retention-policy-source-says-4870349 3 https://the-decoder.com/anthropic-changes-data-retention-policy-after-enterprise-pushback/ Anthropic plans to let enterprise customers keep required safety-monitoring data in their own cloud environments, easing a policy that removed zero-data-retention access for its most capable Claude models. The change is expected in fall 2026, although Anthropic has not announced a specific launch date. 2 https://www.investing.com/news/stock-market-news/anthropic-plans-to-change-enterprise-data-retention-policy-source-says-4870349 The company’s original policy took effect June 9, 2026. It required prompts and outputs from designated “covered models” to remain available for at least 30 days so Anthropic could detect misuse patterns across multiple interactions, including coordinated cyberattacks and jailbreak attempts. 1 https://privacy.claude.com/en/articles/15425996-data-retention-practices-for-covered-models From Anthropic storage to customer-controlled storage Before the planned change, organizations using Claude Fable 5 or the limited-access Mythos 5 could not use zero data retention. On Anthropic’s API, the retained data was handled by Anthropic; on Amazon Bedrock and Google Cloud’s Agent Platform, it stayed with the cloud provider. Microsoft Foundry customers had to configure retention at the Azure subscription level. 1 https://privacy.claude.com/en/articles/15425996-data-retention-practices-for-covered-models 4 https://platform.claude.com/docs/en/manage-claude/api-and-data-retention Under the new system, the 30-day requirement will remain, but the data can be stored on the customer’s own cloud infrastructure. Reuters reported that Anthropic has been developing the system for months with more than 100 customers, including Salesforce. Anthropic developer Boris Cherny publicly confirmed the plans, according to The Decoder. 2 https://www.investing.com/news/stock-market-news/anthropic-plans-to-change-enterprise-data-retention-policy-source-says-4870349 3 https://the-decoder.com/anthropic-changes-data-retention-policy-after-enterprise-pushback/ Anthropic’s current public documentation still describes the June policy as active. It says data is automatically deleted after 30 days except when flagged for a safety investigation or retained for legal reasons, and that human access is limited to approved reviewers through a logged process. 1 https://privacy.claude.com/en/articles/15425996-data-retention-practices-for-covered-models Companies mentioned Further sources 1 Anthropic’s official policy says covered-model prompts and outputs require 30 d… ↗ https://privacy.claude.com/en/articles/15425996-data-retention-practices-for-covered-models 2 Reuters reported that Anthropic plans to retain data for 30 days while giving e… ↗ https://www.investing.com/news/stock-market-news/anthropic-plans-to-change-enterprise-data-retention-policy-source-says-4870349 3 The Decoder reported that Anthropic’s policy drew enterprise pushback, that Bor… ↗ https://the-decoder.com/anthropic-changes-data-retention-policy-after-enterprise-pushback/ 4 Anthropic’s API documentation describes the current model-specific requirement … ↗ https://platform.claude.com/docs/en/manage-claude/api-and-data-retention The stories that matter, in one email. Free — unsubscribe anytime.