All terms

Enterprise AI

Zero data retention

Also known as: ZDR, zero-retention

Zero data retention is an arrangement in which an AI provider does not store your prompts or the model's outputs after the request has been answered. Data is held only transiently in memory to produce the response, then discarded rather than logged for abuse monitoring or model training. It is normally agreed contractually and enabled at the account or endpoint level for enterprise customers.

What it is

Under a zero retention arrangement, request and response payloads are not written to persistent storage by the provider. Standard API terms often retain data for a limited period for safety and debugging, so zero retention is a specific exception that has to be requested and approved. Providers usually scope it to particular endpoints or models, and some features that depend on stored state are unavailable.

Why it matters

Legal, security and procurement teams frequently block AI projects until retention questions are answered, so this setting is often what allows regulated work to proceed. It reduces the surface area for data exposure and simplifies answers about processing, transfer and deletion. For marketing teams it can be the difference between using a model on real customer data or only on sanitised samples.

How it works

Practitioners apply for zero retention with the provider, confirm which endpoints it covers, and record the arrangement in the data processing agreement and internal register. Because logs are not kept on the provider side, teams usually add their own redaction, monitoring and evaluation layer so they still have quality visibility. Architecture is reviewed so that features relying on stored conversation history or file stores are either avoided or handled in systems the business controls.

When it applies

It applies when prompts may contain personal data, client confidential material or regulated records, and when procurement or compliance requires that no third party stores the content of requests.

Examples

  • A financial services marketing team gets zero retention approved before using a model to summarise complaint transcripts.
  • An agency signs a client contract that requires zero retention on any AI system touching first-party customer lists.
  • An in-house team routes sensitive briefs through a zero retention endpoint and everything else through the standard one.

How it is measured

  • Proportion of AI workloads covered by a zero retention agreement
  • Number of endpoints or models verified as in scope
  • Compliance review cycle time for new AI use cases
  • Volume of sensitive requests routed to non-retaining endpoints versus standard ones

Related terms in Enterprise AI

Primary research · August 2026

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An audit across 10 categories and 60 buying questions. I recorded what ChatGPT reads, throws away and links to when a buyer asks it which software to buy, and what that decides.

60
Questions asked
10
Software markets
2,680
Results read
367
Links shown
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