Delta Evals is built around handling sensitive client materials — model outputs, internal benchmarks, proprietary engineering data, and unreleased research. The confidentiality of that material is treated as the single most important contract we hold with every client. This page describes the standards we operate under and the commitments we make.
Last updated: May 1, 2026.
This policy applies to all information that Delta Evals receives in the course of providing data labeling, benchmark creation, and AI evaluation services. This includes inquiries submitted through this website, materials shared during scoping discussions, and any data, prompts, model outputs, datasets, source documents, source code, internal documentation, or other materials provided in connection with an engagement.
Delta Evals only collects the information necessary to scope and deliver the work you engage us for. This typically falls into two categories:
Client engagement materials are treated as strictly confidential by default, whether or not a separate non-disclosure agreement is in place. We hold ourselves to the maximum reasonable security and confidentiality measures available to a research-services firm of our scale. Specifically:
Delta Evals operates with security practices appropriate to the sensitivity of the material we handle:
Delta Evals only uses LLM assistance under client-approved workflows. Client data is never entered into public LLM tools (e.g. consumer or free-tier interfaces of ChatGPT, Claude, Gemini, or any comparable hosted model) unless explicitly permitted in the statement of work for that engagement.
Where an engagement permits LLM-assisted drafting, the LLM is treated as a tool whose output passes through human expert review before it becomes a deliverable. Human experts remain responsible for final labels, rationales, and QA. We do not use any client material to train, fine-tune, or condition any model owned by Delta Evals or by any third party (see §3 above).
Client materials are retained only for the duration of the engagement and any mutually agreed post-delivery support window. Upon completion or earlier client request, client materials are securely deleted from active systems and access is revoked. Backups, where they exist, are aged out within their normal retention cycle and are not exempt from deletion obligations.
Inquiry data submitted through this website is retained only as long as needed to respond to your inquiry and conclude any resulting scoping conversation. You may at any time request deletion of your inquiry data by writing to us through the contact form.
Delta Evals uses a small set of well-known infrastructure providers to operate this website and to receive client communications (e.g. a static-site host, a transactional email service). These providers receive only the minimum data necessary to perform their function and are not granted access to client engagement materials. A current list of subprocessors is available on request before any engagement begins.
Delta Evals does not sell, rent, or otherwise transfer your data — inquiry data or engagement materials — to advertisers, data brokers, AI training providers, or any other third party.
This website uses no advertising cookies, no third-party tracking scripts, and no cross-site tracking. The site loads only the assets needed to render itself (its own CSS, its own JavaScript, fonts from Google Fonts) and does not maintain a persistent session for visitors. If at a later date we add lightweight, privacy-preserving analytics (for example, an aggregate page-view counter that does not set cookies and does not collect IP addresses), this page will be updated to reflect that change.
In the unlikely event of a confirmed security incident affecting client materials, Delta Evals will notify affected clients without undue delay through the engagement’s primary contact, describe the scope and impact as understood at the time of notification, and provide updates as the investigation progresses. We will cooperate in good faith with any client-led incident response and will retain forensic records consistent with applicable law.
You may request access to, correction of, or deletion of any personal data you have provided through this website. Requests should be sent through the contact form and will be acknowledged within a reasonable timeframe.
This policy may be updated from time to time as Delta Evals’s practices, infrastructure, or applicable law evolves. Material changes will be reflected in the “Last updated” date at the top of this page. We will not retroactively reduce the protection afforded to materials shared with us under a prior version of this policy.
Questions about this policy, requests for a mutual NDA, or any privacy-related concern can be directed to us through the contact form. We respond within 1–2 business days.
