API and data retention changed Anthropic, Jul 8, 2026
Anthropic · Jul 8, 2026 · 10 added, 6 removed · found in an Internet Archive capture
- Added: Only what is technically necessary for the API and feature to work is retained. Conversation content (your prompts and Claude's outputs) is not retained by default. Certain models require 30-day data retention; see Model-specific data retention requirements .
- Removed: Only what is technically necessary for the API and feature to work is retained. Conversation content (your prompts and Claude's outputs) is never retained unless explicitly noted.
- Added: Claude Fable 5 and Claude Mythos 5 are not available under ZDR; see Model-specific data retention requirements .
- Added: Certain Claude APIs: ZDR applies to the Claude Messages and Token Counting APIs.
- Removed: Certain Claude APIs: ZDR applies to the Claude Messages and Token Counting APIs
- Added: Claude Fable 5 and Claude Mythos 5 are designated Covered Models and require 30-day data retention. Zero data retention is not available for Claude Fable 5 or Claude Mythos 5. On the Claude API, requests to either model from an organization whose data retention configuration does not meet this requirement return a 400 invalid_request_error .
- Added: The 30-day data retention requirement applies wherever Covered Models are offered. On the Claude API (including Claude Platform on AWS), Anthropic handles retained data. On Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry, retained data stays within your cloud provider's environment; review each platform's documentation for enablement steps.
- Added: Organizations with a ZDR arrangement can configure data retention at the workspace level in Claude Console > Settings > Workspaces : open a workspace's Privacy controls tab and turn on 30-day data retention for that workspace. This makes Claude Fable 5 and Claude Mythos 5 available in the designated workspace while the organization's other workspaces keep zero data retention. Workspaces without an override follow the organization default.
- Added: Partner-operated platforms: Amazon Bedrock or Google Cloud (refer to those platforms' compliance documentation)
- Removed: Partner-operated platforms: Amazon Bedrock or Vertex AI (refer to those platforms' compliance documentation)
- Added: PDF document processing uses the standard Messages API. HIPAA eligibility applies to PDFs sent inline through the Messages API, not through the Files API.
- Removed: PDF document processing uses the standard Messages API. HIPAA eligibility applies to PDFs sent inline via the Messages API, not through the Files API.
- Added: 2 Although web fetch is ZDR-eligible, website publishers may retain request data (such as fetched URLs and request metadata) according to their own policies.
- Removed: 2 While web fetch is ZDR-eligible, website publishers may retain request data (such as fetched URLs and request metadata) according to their own policies.
- Added: Even with ZDR or HIPAA arrangements in place, Anthropic may retain data where required by law or where it has been flagged by Anthropic's automated trust and safety systems. As a result, if a chat or session is flagged, Anthropic may retain inputs and outputs for up to 2 years.
- Removed: Even with ZDR or HIPAA arrangements in place, Anthropic may retain data where required by law or to combat Usage Policy violations and malicious uses of Anthropic's platform. As a result, if a chat or session is flagged for such a violation, Anthropic may retain inputs and outputs for up to 2 years.
About this change
- Page
- platform.claude.com/docs/en/manage-claude/api-and-data-retention
- Kind
- Documentation
- Text hash
- 28b4cac23a6c to 9bb146baa759
- Dated by
- the first Internet Archive capture sampled that shows the new text; the change happened on or before this date