§ The result
Plum leads Aon Assessment on all 7 criteria.
Plum finishes 19 points clear of Aon Assessment inside the Assessment cohort under rubric v1.0: 54 against 35. Plum leads every one of the 7 criteria, Aon Assessment none of them, and the closest of the 7 is FRIA Support, Aon Assessment 25 to Plum 28. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Aon Assessment 30, Plum 83 — and at an 18% weight it carries 49% of the weighted advantage Plum holds across the 7 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
Plum
Plum is a pre-employment talent assessment platform that uses a Five-Factor (Big Five) psychometric Discovery Survey and a Talent Match model to score and rank candidates on behavioral "durable skills" for role fit, hiring, and development.
§ The record
Aon Assessment and Plum are both filed under Assessment 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 | Plum |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | DE | CA |
| Founded | 2002 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 49% of the movement so far
Bias Audit Transparency
Aon Assessment 30 · Plum 83
9.5 weighted points to Plum
20% weight · 68% of the movement so far
Article 11 Technical Documentation
Aon Assessment 40 · Plum 58
3.6 weighted points to Plum
15% weight · 80% of the movement so far
Data Governance Disclosure
Aon Assessment 38 · Plum 54
2.4 weighted points to Plum
12% weight · 87% of the movement so far
Post-Market Monitoring
Aon Assessment 25 · Plum 36
1.3 weighted points to Plum
8% weight · 93% of the movement so far
Customer Documentation
Aon Assessment 48 · Plum 63
1.2 weighted points to Plum
12% weight · 98% of the movement so far
Human Oversight Design
Aon Assessment 45 · Plum 52
0.8 weighted points to Plum
15% weight · 100% of the movement so far
FRIA Support
Aon Assessment 25 · Plum 28
0.4 weighted points to Plum
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -19.3 — the difference between the two totals before either is rounded. Shares are of 19.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -19 beside that -19.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Aon Assessment minus Plum.
| Category | Weight | Aon Assessment | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 40 | 58 | -18 | -3.6 |
| Bias Audit Transparency | 18% | 30 | 83 | -53 | -9.5 |
| FRIA Support | 15% | 25 | 28 | -3 | -0.4 |
| Data Governance Disclosure | 15% | 38 | 54 | -16 | -2.4 |
| Human Oversight Design | 12% | 45 | 52 | -7 | -0.8 |
| Post-Market Monitoring | 12% | 25 | 36 | -11 | -1.3 |
| Customer Documentation | 8% | 48 | 63 | -15 | -1.2 |
| Total | 100% | 35 (F) | 54 (F) | -19 | -19.3 |
§ 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 | Plum | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 1 | 1 | Audit reportSources on a separate domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| 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 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 2 | 1 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 11 | 6 | Audit reportSources on the vendor's own domainSources on a separate domain | 15 | 4 | Audit reportSources 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; Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 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 36 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Aon Assessment last reviewed
- June 7, 2026 · HireAIScore editorial team
- Plum 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