§ The result
Gem leads Aon Assessment on all 7 criteria.
Gem finishes 20 points clear of Aon Assessment under rubric v1.0 — 55 against 35 — across the Sourcing and Assessment cohorts. Gem 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 Gem 35. Bias Audit Transparency is the widest raw gap and the heaviest weighted swing at once (Aon Assessment 30, Gem 66, 18% weight), but it accounts for only 32% of the weighted advantage Gem 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
Gem
Gem is an AI-first recruiting platform combining a talent CRM, AI sourcing and outreach automation, candidate engagement, and a newer applicant tracking system with AI-powered application review and ranking.
§ The record
Aon Assessment is filed under Assessment AI, Gem under Candidate sourcing AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act and Colorado AI Act. Only Aon Assessment is in scope of Mobley v. Workday.
| Record | Aon Assessment | Gem |
|---|---|---|
| Price tier | Enterprise | High |
| Headquarters | DE | US |
| Founded | 2002 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 32% of the movement so far
Bias Audit Transparency
Aon Assessment 30 · Gem 66
6.5 weighted points to Gem
20% weight · 50% of the movement so far
Article 11 Technical Documentation
Aon Assessment 40 · Gem 58
3.6 weighted points to Gem
15% weight · 64% of the movement so far
Data Governance Disclosure
Aon Assessment 38 · Gem 57
2.9 weighted points to Gem
12% weight · 77% of the movement so far
Post-Market Monitoring
Aon Assessment 25 · Gem 47
2.6 weighted points to Gem
12% weight · 87% of the movement so far
Human Oversight Design
Aon Assessment 45 · Gem 61
1.9 weighted points to Gem
15% weight · 94% of the movement so far
FRIA Support
Aon Assessment 25 · Gem 35
1.5 weighted points to Gem
8% weight · 100% of the movement so far
Customer Documentation
Aon Assessment 48 · Gem 62
1.1 weighted points to Gem
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -20.1 — the difference between the two totals before either is rounded. Shares are of 20.1 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -20 beside that -20.1.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Aon Assessment minus Gem.
| Category | Weight | Aon Assessment | Gem | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 40 | 58 | -18 | -3.6 |
| Bias Audit Transparency | 18% | 30 | 66 | -36 | -6.5 |
| FRIA Support | 15% | 25 | 35 | -10 | -1.5 |
| Data Governance Disclosure | 15% | 38 | 57 | -19 | -2.9 |
| Human Oversight Design | 12% | 45 | 61 | -16 | -1.9 |
| Post-Market Monitoring | 12% | 25 | 47 | -22 | -2.6 |
| Customer Documentation | 8% | 48 | 62 | -14 | -1.1 |
| Total | 100% | 35 (F) | 55 (F) | -20 | -20.1 |
§ 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 | Gem | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 1 | 1 | Audit reportSources on a separate domain | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 3 | 0 | 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 | 19 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain |
Aon Assessment has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; Gem has 21 evidence rows across 7 of 7 criteria — 19 with a source URL, 2 documented absences; some documentation or audit rows for Aon Assessment and Gem sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 38 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 21 for Gem, across 2 distinct source domains.
- Rubric
- v1.0
- Aon Assessment last reviewed
- June 7, 2026 · HireAIScore editorial team
- Gem 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