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.

Cerebras inference API zero data retention: terms and exceptions

Q: What is the ZDR score for Cerebras inference API?

On zdr.dev the published score is ZDR 0.5 · C. Claims no retention of prompts/outputs; support-article grade, no formal program. Absence of a documented safety exception is itself a red flag under the framework.

ZDR 0.5 · C

Short answer

Claims no retention of prompts/outputs; support-article grade, no formal program. Absence of a documented safety exception is itself a red flag under the framework.

Scope and evidence

Provider	Cerebras
Service	inference API
Lane	ZDR
Origin	US United States
License	open-weight
Hosting	Self-host
Score	ZDR 0.5 · C Architectural ZDR. Nothing durably written by provider; stateful features blocked/rejected; still third-party plaintext processing
Evidence	Marketing or support claims (C: marketing or support-article claims)
Source-review date	2026-08-24 (registry)

Other lanes for Cerebras

ZDR 0.5 · Ccerebras/api · inferenceZDR

Structured breakdown

Default posture: claims no retention of prompts/outputs; support-article grade, no formal program
Exceptions and carve-outs: absence of a documented safety exception is itself a red flag under the framework

Approval and setup path

Approval and setup path not yet reviewed.

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?