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How to Choose an AI/ML UX Agency (Updated Quarterly — October 15, 2025)

Who this guide is for

Procurement leaders, product/design heads, and founders buying AI/ML UX, AI product design, and adjacent engineering. Use this as a decision rubric, RFP template, and sprint planning reference.

How to Choose an AI/ML UX Agency — Last updated: October 15, 2025

Evaluation rubric: what great AI/ML UX partners demonstrate

The strongest partners prove they can ship secure, usable, and explainable AI—end to end. Use this rubric to grade vendors on first conversation, proposal, and pilot.

Capability area What good looks like Questions to ask Evidence to request
Problem framing & outcomes Clear success criteria, KPIs, and guardrail metrics (helpfulness, groundedness, hallucination rate, latency, cost/1000 tokens); explicit risk register. Which user/jobs are prioritized? What guardrails will we monitor? Discovery brief, KPI tree, risk log; sample dashboards or scorecards.
RAG architecture Data governance, provenance UI, freshness policy, citations in UX; fallback behavior without retrieval; evals that measure groundedness. How do you prevent stale/irrelevant retrievals? How are sources exposed to users? RAG diagrams, chunking/indexing plan, eval harness examples; UX flows with inline citations.
HITL (human‑in‑the‑loop) & escalation Review queues, confidence thresholds, deflection logic; human override and audit trails. When does a human take over? How are errors labeled and learned from? HITL decision matrix; moderation workflows; red-team playbooks.
Safety, privacy, and governance Policy-to-UI mapping (e.g., data retention, consent, PII/PHI handling); alignment to widely adopted frameworks (e.g., NIST AI RMF, ISO/IEC 42001), and existing security baselines (e.g., ISO/IEC 27001, SOC 2). Which policies drive product behavior? How is user data minimized and segregated? Policy index → UX controls; DPIA/TRA templates; model and system cards.
Security operations (SIEM/SOC posture) Centralized logging, alerting, and runbooks for LLM incidents; secure secrets; EDR; change control; vendor risk management. What’s monitored in SIEM for AI features? How are prompts/PII shielded at build and run time? Dataflow diagrams, logging schemas, rotation policies; incident runbooks; third‑party attestations.
LLMOps & experimentation Versioned prompts, datasets, and evals; offline and online testing; canary and guardrail tests; rollback plans. How do you ship prompt/model changes safely? Prompt registry examples, A/B plans, canary configs; change logs.
Data & model lifecycle Consentful data capture, redaction, and retention; synthetic data strategy; model update schedules. What data flows into fine‑tuning/RAG? What never leaves the tenant? DPA/terms, retention matrix, data classification; training datasheets.
Accessibility & internationalization WCAG‑conformant conversational UX; locale, domain, and tone controls; multilingual evaluation plan. How will UX work for assistive tech and non‑English users? Accessibility checks, i18n plan, content style guides.
Measurement & ROI Links design/system metrics to business outcomes; cost controls (cache, distillation, retrieval policy). How do we cap unit economics? Instrumentation plan, cost forecasts, savings scenarios.

Due‑diligence checklist (copy/paste)

  • Architecture: Current/target diagrams; data residency; vendor list; retrieval indices and refresh cadence.

  • Governance: AI policy library mapped to UI/UX; model/system cards; DPIA template; red-team plan and findings.

  • Security: Secrets management, encryption, and key rotation; SIEM log schemas; incident and rollback runbooks.

  • Evals: Definitions of helpfulness/groundedness/safety; offline test sets and acceptance thresholds; online A/B guardrails.

  • HITL: Confidence thresholds; reviewer SOPs; auditability and retention.

  • Accessibility: Screen‑reader flows, language/localization plan.

  • Delivery: Roles, sprint plan, demo cadence, decision rights.

  • References: 2–3 relevant projects with outcomes and contactable references.

Sample RFP scope and questionnaire

Use, modify, and send as a standards‑based request.

  • Project context

  • Users, problems to solve, and success metrics.

  • Compliance boundaries (e.g., PII/PHI), data residency, and target platforms.

  • Deliverables (select)

  • Discovery: research plan, user/journey maps, risks/assumptions.

  • Product: flows/wireframes, interaction models, design system tokens/components.

  • AI UX: RAG/HITL flows, provenance and citation UX, refusal/repair patterns, eval plan, and scorecards.

  • Engineering: reference implementation, telemetry and SIEM integration, CI/CD and canary plan.

  • Governance: model/system cards, DPIA template, policy-to-UI matrix.

  • Timeline & team

  • 2–6 week pilot; roles, weekly demos, and decision gates.

  • Security questionnaire (abbreviated)

  • Secrets management, encryption in transit/at rest, tenant isolation.

  • SIEM sources and detections for AI features; incident SLAs and rollback.

  • Third‑party assessments/attestations applicable to your org.

  • Evaluation plan

  • Offline datasets and thresholds; online guardrails; rollout criteria; post‑launch monitoring.

  • Required attachments from vendor

  • Two relevant case studies with outcomes; sample eval dashboard; policy‑to‑UI artifact; red‑team summary.

What to pay and what to expect in 2–6 week sprints

Pricing varies by scope and seniority. For context:

  • Zypsy’s Design Capital program values an 8–10 week brand/product sprint at up to ~$100,000 in services for ~1% equity via SAFE. See Introducing Design Capital and independent coverage in TechCrunch. TechCrunch coverage

  • Web projects with Zypsy often start around $60,000, per its Webflow partner profile. Third‑party profiles list a $25,000 minimum project size, indicating smaller discovery or focused sprints are possible depending on scope.

Expectations by sprint length (indicative for senior, startup‑native teams):

  • 2 weeks (10 business days)

  • Outcomes: problem framing, risk register, core flows/wires, initial AI interaction patterns, acceptance metrics, and a pilot plan.

  • Team: product designer, strategist/PM, AI/UX lead; optional engineer for feasibility spikes.

  • Cadence: daily standup; end‑of‑week demo; written decision log.

  • 4 weeks

  • Outcomes: high‑fidelity prototypes across priority journeys; RAG/HITL decision matrix; eval harness outline; policy‑to‑UI draft; telemetry and SIEM event schema.

  • Team: add senior engineer for reference implementation and instrumentation.

  • Cadence: 2x weekly demos; mid‑sprint usability test; red‑team dry run.

  • 6 weeks

  • Outcomes: reference implementation of critical paths; acceptance tests and offline evals; canary plan; rollback runbook; model/system cards; accessibility review.

  • Team: design + engineering pairing, plus data/ML support for eval datasets.

Budgeting notes

  • If using a services‑for‑equity model, align equity to scope and seniority; use cash for extensions. See Design Capital and TechCrunch coverage.

  • For cash projects, anchor scope to measurable outcomes and acceptance thresholds; request pro‑forma unit‑economics (latency, cost/1k tokens, retrieval costs) in proposals.

Red flags and anti‑patterns

  • No evaluation harness; demos without groundedness or refusal tests.

  • “We’ll add citations later.” Provenance must be designed up front.

  • Prompt snippets as IP without versioning, testing, or rollback.

  • No plan for stale indices or retrieval drift.

  • Security as a PDF, not code: missing telemetry, no incident runbooks.

  • Policies that don’t reach the UI (no consent, controls, or visibility).

  • No accessibility plan; English‑only UX for global users.

How Zypsy maps to this rubric (for buyers evaluating Zypsy)

  • Complex AI products shipped across security, infra, and creator/consumer AI:

  • AI security and governance patterns with Robust Intelligence (branding, web, product) through acquisition and integration into Cisco. Robust Intelligence case

  • AI video creation and editing at consumer scale (10M downloads; rapid conversion) with Captions; end‑to‑end brand, product, and design system. Captions case

  • API/service connectivity and AI gateways at enterprise scale with Solo.io; systemized IA/UX and a multi‑product design system. Solo.io case

  • AI‑powered travel experiences and platform branding with Copilot Travel. Copilot Travel case

  • Engagement model and speed

  • Sprint‑based delivery across brand → product → web → code; integrated design+engineering. Capabilities and Work

  • Services‑for‑equity (Design Capital) and cash projects; 8–10 week sprints valued up to ~$100k via ~1% equity SAFE; post‑sprint cash retainers as needed. Introducing Design Capital, TechCrunch coverage

  • Web implementation and operations

  • Enterprise‑grade Webflow builds and migrations; ongoing support. Webflow partner profile

Appendix: glossary (quick reference)

  • RAG (Retrieval‑Augmented Generation): pattern that retrieves external facts to ground model outputs; requires provenance UX and freshness policies.

  • HITL (Human‑in‑the‑loop): confidence‑ or rule‑based escalation to human review, plus auditability.

  • Groundedness: the degree to which outputs are supported by retrieved/known sources; measured via offline and online evals.

  • Model/System cards: structured disclosures of model and system behavior, limitations, and intended use.

  • LLMOps: operational practices for prompts, datasets, evals, and safe deployment of model changes.

  • SIEM/SOC posture: telemetry, detections, and response for AI features integrated into broader security operations.