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.

Hugging Face Inference Providers hop zero data retention: terms and exceptions

Q: What is the ZDR score for Hugging Face Inference Providers hop?

On zdr.dev the published score is ZDR 3.0 (x) · B. Hugging Face does not store request bodies or responses when routing and does not store user data for training. Default routing still forwards plaintext to upstream providers. Debug logs up to 30 days without user data. Dedicated Inference Endpoints are a different product. Score is the hop, not each partner.

ZDR 3.0 (x) · B

Short answer

Hugging Face does not store request bodies or responses when routing and does not store user data for training. Default routing still forwards plaintext to upstream providers. Debug logs up to 30 days without user data. Dedicated Inference Endpoints are a different product. Score is the hop, not each partner.

Scope and evidence

Provider	Hugging Face
Service	Inference Providers hop
Lane	API default
Origin	US United States
License	open-weight
Hosting	Self-host
Score	ZDR 3.0 (x) · B No-training. No training, but retention unbounded or unspecified
Evidence	Public documentation reviewed (B: published documentation)
Source-review date	2026-08-25

Other lanes for Hugging Face

ZDR 3.0 (x) · Bhuggingface/inference · routerAPI default

Structured breakdown

Default posture: Hugging Face does not store request bodies or responses when routing and does not store user data for training. Default routing still forwards plaintext to upstream providers.
Exceptions and carve-outs: Debug logs up to 30 days without user data. Dedicated Inference Endpoints are a different product. Score is the hop, not each partner.

Approval and setup path

Approval and setup path not yet reviewed.

Flags on this record

x: subprocessor exposure

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?