§ The result
Willo leads Aon Assessment by 6 points.
Willo scores 41 and Aon Assessment 35 under rubric v1.0, a 6-point gap across the Video interview and Assessment cohorts. Willo leads 4 of the 7 criteria, including Data Governance Disclosure, while Aon Assessment leads 1, including Article 11 Technical Documentation, and 2 are level. The widest raw gap and the heaviest weighted swing fall on different criteria: Human Oversight Design (Aon Assessment 45, Willo 62) and Data Governance Disclosure at 15% (Aon Assessment 38, Willo 53), the second being 37% of the weighted advantage Willo holds across the 4 criteria on that side of the table.
Vendor profile
Aon Assessment
Aon Assessment Solutions (formerly cut-e) provides enterprise pre-hire psychometric assessments - ability, personality (ADEPT-15), situational-judgement, gamified cognitive (smartPredict/gridChallenge) tests and an AI-scored video interview tool (vidAssess-AI) - used to screen and rank job applicants at scale.
Vendor profile
Willo
Willo is a browser-based asynchronous (one-way) video interview platform that lets employers collect recorded video, audio, multiple-choice and written candidate responses, then uses AI to transcribe, summarize, rank candidates against employer-defined "Blueprint" criteria, and flag scripted or AI-generated answers.
§ The record
Aon Assessment is filed under Assessment AI, Willo under Video interview AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Aon Assessment | Willo |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | DE | GB |
| Founded | 2002 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 35% of the movement so far
Data Governance Disclosure
Aon Assessment 38 · Willo 53
2.3 weighted points to Willo
12% weight · 66% of the movement so far
Human Oversight Design
Aon Assessment 45 · Willo 62
2.0 weighted points to Willo
12% weight · 86% of the movement so far
Post-Market Monitoring
Aon Assessment 25 · Willo 36
1.3 weighted points to Willo
8% weight · 94% of the movement so far
Customer Documentation
Aon Assessment 48 · Willo 54
0.5 weighted points to Willo
20% weight · 100% of the movement so far
Article 11 Technical Documentation
Aon Assessment 40 · Willo 38
0.4 weighted points to Aon Assessment
Weighted delta is the raw difference times the criterion weight, so the 5 figures above sum to -5.7 — the difference between the two totals before either is rounded. Shares are of 6.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -6 beside that -5.7.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Aon Assessment minus Willo.
| Category | Weight | Aon Assessment | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 40 | 38 | +2 | +0.4 |
| Bias Audit Transparency | 18% | 30 | 30 | - | - |
| FRIA Support | 15% | 25 | 25 | - | - |
| Data Governance Disclosure | 15% | 38 | 53 | -15 | -2.3 |
| Human Oversight Design | 12% | 45 | 62 | -17 | -2.0 |
| Post-Market Monitoring | 12% | 25 | 36 | -11 | -1.3 |
| Customer Documentation | 8% | 48 | 54 | -6 | -0.5 |
| Total | 100% | 35 (F) | 41 (F) | -6 | -5.7 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Aon Assessment | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 1 | 1 | Audit reportSources on a separate domain | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 11 | 6 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Aon Assessment has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; Willo has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Aon Assessment sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 31 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- Aon Assessment last reviewed
- June 7, 2026 · HireAIScore editorial team
- Willo last reviewed
- June 7, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next