Notice before subprocessors change in LLM tooling and evaluation
A list is a snapshot. Art. 28(2) GDPR gives you a right to object, and that needs advance notice.
7 of 49 companies we measured here publish it, that is 14%. Last checked 2026-10-17.
14% here against 10% across every category we measure. LLM tooling and evaluation sits above the overall share for this criterion.
This page counts companies, not product entries: a company with two products in this category is one company here and two rows below.
Back to Notice before subprocessors change across all categories, or to LLM tooling and evaluation.
- Found7
- Not found at checked addresses42
- Not measured1
50 companies in total. Unmeasured companies are excluded from the published share.
Published
The vendor commits publicly to giving notice before the list changes.
| Vendor | What we found |
|---|---|
| Braintrust | https://www.braintrust.dev/legal/dpaChecked |
| Fiddler | https://www.fiddler.ai/legal/dpaChecked |
| HiddenLayer | https://www.hiddenlayer.com/dpaChecked |
| Langfuse | https://clickhouse.com/legal/agreements/langfuse-subprocessorsChecked |
| Lunary | https://lunary.ai/legal/dpaChecked |
| Mastra | https://mastra.ai/legal/dpaChecked |
| Openlayer | https://www.openlayer.com/data-processing-agreementChecked |
No commitment to give notice before subprocessors change found.
We reached at least one address for each of these vendors and none of them carried it. That is what we found at the addresses we checked, on the date we checked them, and not a statement about what the vendor has.
| Vendor | What we found |
|---|---|
| Agenta | 8 addresses checkedChecked |
| AgentOps | 8 addresses checkedChecked |
| Arize | 8 addresses checkedChecked |
| Bifrost | 8 addresses checkedChecked |
| Chainlit | 8 addresses checkedChecked |
| Cognee | 8 addresses checkedChecked |
| Confident AI | 8 addresses checkedChecked |
| Deepchecks | 8 addresses checkedChecked |
| Dify | 8 addresses checkedChecked |
| Flowise | 8 addresses checkedChecked |
| Freeplay | 8 addresses checkedChecked |
| Galileo | 8 addresses checkedChecked |
| Gentrace | 8 addresses checkedChecked |
| Giskard | 8 addresses checkedChecked |
| Guardrails AI | 8 addresses checkedChecked |
| Helicone | 8 addresses checkedChecked |
| Humanloop | 8 addresses checkedChecked |
| Lakera | 8 addresses checkedChecked |
| Laminar | 8 addresses checkedChecked |
| LangChain | 8 addresses checkedChecked |
| LangWatch | 8 addresses checkedChecked |
| LastMile AI | 8 addresses checkedChecked |
| Latitude | 8 addresses checkedChecked |
| Letta | 8 addresses checkedChecked |
| Literal AI | 8 addresses checkedChecked |
| LlamaIndex | 8 addresses checkedChecked |
| Mem0 | 8 addresses checkedChecked |
| Orq | 8 addresses checkedChecked |
| Parea | 8 addresses checkedChecked |
| Patronus AI | 8 addresses checkedChecked |
| Portkey | 8 addresses checkedChecked |
| PromptFoo | 8 addresses checkedChecked |
| PromptLayer | 8 addresses checkedChecked |
| Ragas | 8 addresses checkedChecked |
| Respan | 8 addresses checkedChecked |
| Supermemory | 8 addresses checkedChecked |
| Traceloop | 8 addresses checkedChecked |
| Vectorize | 8 addresses checkedChecked |
| Vellum | 8 addresses checkedChecked |
| Velvet | 8 addresses checkedChecked |
| WhyLabs | 8 addresses checkedChecked |
| Zep | 8 addresses checkedChecked |
Not measured
We could not look at these, or their robots.txt asks us not to. That says something about our measurement, not about them, and they are left out of the percentage above.
| Vendor | What we found |
|---|---|
| Athina | The vendor’s server blocked or rate-limited our crawler, so this was not measured.Checked |
Other criteria in LLM tooling and evaluation
- Data processing agreement
- Subprocessor list
- Data location stated
- Status page with history
- Public pricing
- Certifications named
- HTTPS enforced with HSTS
- No third-party tracking before consent
- security.txt (RFC 9116)
- Named privacy contact
Notice before subprocessors change in related categories
Found something we missed? Tell us. A correction moves that vendor into our next nightly run. That run reads the same fixed addresses we check for every vendor, not the address you send.