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AI Glossary · plain English for UK business

What is zero data retention?

Zero data retention is a contractual arrangement in which a provider does not store the content sent to its models beyond the time needed to return a response. It is frequently the control that makes a regulated use case viable, and it needs confirming in the agreement rather than assumed from marketing material.

Why it matters for a UK business

It is the arrangement that lets a business put truly sensitive material through a model without that material being stored or used to train anything. It is also the arrangement most people assume they have and do not.

What it looks like in practice

A vendor commitment that your inputs are not retained after the request is served. It is usually a contractual or enterprise-tier feature, not a default, and the consumer version of the same product typically does not offer it.

What to do about it

Get it in writing from the vendor, tied to the specific product tier you are using. Then write it into your data boundary so the people using the tool know which material is covered and which is not.

Related terms

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If this is the term that has come up in your business and you want it worked through against your own situation rather than in the abstract, that is a conversation, not a page.

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Written by Chris Duffy. Last reviewed .

Chris Duffy, founder of Ignite AI Solutions

About the author

Chris Duffy Founder and Chief AI Officer, Ignite AI Solutions

Chris is the founder of Ignite AI Solutions, a Certified Chief AI Officer and one of the Top 20 AI Leaders of 2026. He is a regular expert source for Forbes on AI and cybersecurity, and a member of the UKAI Council supporting accredited pathways for upskilling. He was nominated for 3 awards at the National AI Awards 2026, including the Aiconics Award for responsible AI. A UK Special Forces veteran, he now helps UK SMEs adopt AI safely and effectively.

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