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ZDR is a contractual guarantee from the model provider: the request and response are not stored in any form (logs, telemetry, cache, fine-tuning). Geek Hub maintains a list of endpoints where this guarantee is signed and verified, and rejects ZDR-marked requests targeting endpoints outside the list.

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Three activation levels

1

Per request

Pass zdr: true in your body. The gateway checks the target model against the registry. Verified → proceed. Not verified → HTTP 422 with reason.
2

Per account

In /dashboard/settings → Zero Data Retention enable ZDR per provider group (Anthropic, OpenAI, Google, Others). When a group is on, all org requests to that group are checked.
3

Per guardrail

Guardrails let you configure ZDR per user or per API key. Useful when different teams under the same org need different policies.

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Example request

curl -X POST https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer ghub_sk_live_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4-6",
    "messages": [{"role":"user","content":"Hi"}],
    "zdr": true
  }'

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Verified endpoints

GroupModelsVerified
Anthropicclaude-opus-4-8, claude-sonnet-4-6, claude-haiku-4-53 / 3
OpenAIgpt-5, gpt-4.1, gpt-4.1-mini, o4-mini, tts-1, tts-1-hd, gpt-4o-mini-tts7 / 7
Googlegemini-2.5-pro, gemini-2.5-flash2 / 2
Others (DeepSeek, xAI, Moonshot, fal)—0 / 8

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Rejection format

{
  "error": {
    "type": "zdr_not_verified",
    "message": "Provider does not offer a signed ZDR policy verified by Geek Hub.",
    "model": "deepseek/deepseek-chat",
    "verified_alternatives": ["openai/gpt-5", "anthropic/claude-sonnet-4-6"]
  }
}

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GDPR — art. 5(1)(e) data minimization

ZDR is part of your GDPR art. 5(1)(e) (storage limitation) compliance posture. If your provider doesn’t retain the conversation, retention at that layer is effectively zero — reducing the scope of your upstream processing obligations.
ZDR covers the model provider’s retention. Geek Hub does store billing metadata (model id, tokens, cost, latency) for CFDI/Stripe. Message content is not persisted at the gateway layer.