ZDR
A data privacy mechanism offered by AI service providers, committing to not retaining users' original input data. It is typically offered as an enterprise-level privacy protection option, though the scope of protection over derived data remains subject to interpretation.
Core Facts
Zero retention does not equal zero learning—the fact that data is not stored does not mean that patterns and information extracted from it will not influence the model in some form
AI Gateway offers a ZDR (Zero Data Retention) feature, whereby request data is not retained by the vendor for training or other purposes.
Timeline (last 90 days)
When Muse Spark Open is provided through AI Gateway, it supports ZDR (zero data retention) and by default does not use request data for training.
Zero Data Retention (ZDR) is a data governance commitment: after processing a request, the service provider does not persistently store the prompt and model output, nor use them for model training or human review; ZDR generally covers content retention in the inference stage, but metadata such as billing and rate limits is usually still recorded.
Zero Data Retention (ZDR) is an option some AI vendors offer to enterprise customers: requests and responses are not persisted after inference is complete and are used only for that computation.
Mistral Large 4 was excluded from the official ranking because it did not offer zero data retention (ZDR) at the time, and was tested only for reference.
ZDR (Zero Data Retention) is a data processing commitment provided by OpenAI for enterprise compliance scenarios, under which user request content and model responses are not retained and are immediately discarded after processing
The Agents API is currently not eligible for ZDR (Zero Data Retention)
Compliance (ZDR, HIPAA) and observability should be treated as one-veto items in Agent tech stack selection, used to filter out options at the early stage of evaluation
Opus supports a Zero Data Retention (ZDR) policy, while the Fable product line does not offer full zero data retention.
ZDR (Zero Data Retention) is a privacy mechanism offered by many AI service providers
Zero retention does not equal zero learning—the fact that data is not stored does not mean that patterns and information extracted from it will not influence the model in some form
5 more timeline events
All Facts (15)
Zero retention does not equal zero learning—the fact that data is not stored does not mean that patterns and information extracted from it will not influence the model in some form
75%VerifiedAI Gateway offers a ZDR (Zero Data Retention) feature, whereby request data is not retained by the vendor for training or other purposes.
75%UnverifiedWhen Muse Spark Open is provided through AI Gateway, it supports ZDR (zero data retention) and by default does not use request data for training.
50%UnverifiedZero Data Retention (ZDR) is a data governance commitment: after processing a request, the service provider does not persistently store the prompt and model output, nor use them for model training or human review; ZDR generally covers content retention in the inference stage, but metadata such as billing and rate limits is usually still recorded.
50%UnverifiedZero Data Retention (ZDR) is an option some AI vendors offer to enterprise customers: requests and responses are not persisted after inference is complete and are used only for that computation.
50%UnverifiedMistral Large 4 was excluded from the official ranking because it did not offer zero data retention (ZDR) at the time, and was tested only for reference.
50%UnverifiedThe Agents API is currently not eligible for ZDR (Zero Data Retention)
50%UnverifiedZDR (Zero Data Retention) is a data processing commitment provided by OpenAI for enterprise compliance scenarios, under which user request content and model responses are not retained and are immediately discarded after processing
50%UnverifiedCompliance (ZDR, HIPAA) and observability should be treated as one-veto items in Agent tech stack selection, used to filter out options at the early stage of evaluation
50%UnverifiedOpus supports a Zero Data Retention (ZDR) policy, while the Fable product line does not offer full zero data retention.
50%UnverifiedZDR (Zero Data Retention) is a privacy mechanism offered by many AI service providers
50%UnverifiedAccording to the leak, even under privacy frameworks such as ZDR or no-training commitments, derived data is typically carved out separately and considered to fall within fair use
50%UnverifiedOllama-hosted DeepSeek models adopt a zero data retention (ZDR) policy.
50%UnverifiedThe ZDR policy means that data exists only within the in-memory inference pipeline and is released after inference is complete, and will not be written to disk or enter a logging system.
50%UnverifiedFor strictly regulated industries such as finance, healthcare, and legal, ZDR is a key consideration when selecting an AI API service provider.
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