What is zero data retention (ZDR)?

Zero data retention (ZDR) is the claim that an AI endpoint does not keep the prompt, the completion, or other residue of a request after the call finishes.

AWS Bedrock, data_retention_mode:none, non-covered models zero data retention: terms and exceptions

Q: What is the ZDR score for AWS Bedrock, data_retention_mode:none, non-covered models?

On zdr.dev the published score is ZDR 0.5 · A. Zero operator access; nothing durably written; providers can't see traffic. OpenAI frontier models: flagged traffic <=30d; covered Anthropic models require provider_data_share.

ZDR 0.5 · A

Short answer

Zero operator access; nothing durably written; providers can't see traffic. OpenAI frontier models: flagged traffic <=30d; covered Anthropic models require provider_data_share.

Scope and evidence

Provider	AWS
Service	Bedrock, data_retention_mode:none, non-covered models
Lane	ZDR
Origin	US United States
License	open-weight
Hosting	Self-host
Score	ZDR 0.5 · A Architectural ZDR. Nothing durably written by provider; stateful features blocked/rejected; still third-party plaintext processing
Evidence	Contractual agreement reviewed (A: contractual (DPA/agreement-backed))
Source-review date	2026-08-24 (registry)

Other lanes for AWS

ZDR 0.5 · Aaws/bedrock · mode:noneZDR

Structured breakdown

Default posture: zero operator access; nothing durably written; providers can't see traffic
Exceptions and carve-outs: OpenAI frontier models: flagged traffic <=30d; covered Anthropic models require provider_data_share

Approval and setup path

first-class API, SCP-enforceable; retention-requiring models rejected with error

Flags on this record

No exception flags on this record.

Practical questions for your agreement

Does your signed agreement cover this exact service, model set, and feature path?
Which retention, logging, and human-review exceptions still apply after any ZDR election?
What configuration evidence (flags, project settings, store defaults) confirms the posture you expect?
Do your customer commitments match what the reviewed evidence supports?