§ The result
Employment Hero leads Mercer | Mettl by 6 points.
Under rubric v1.0, Employment Hero, filed under Screening, finishes on 48 and Mercer | Mettl, filed under Assessment, on 42, 6 points apart. Mercer | Mettl takes 1 of the 7 criteria, Bias Audit Transparency among them, against 6 for Employment Hero, whose share includes Article 11 Technical Documentation. The widest raw gap and the heaviest weighted swing fall on different criteria: Human Oversight Design (Employment Hero 62, Mercer | Mettl 45) and Article 11 Technical Documentation at 20% (Employment Hero 50, Mercer | Mettl 38), the second being 32% of the weighted advantage Employment Hero holds across the 6 criteria on that side of the table.
Vendor profile
Employment Hero
SmartMatch is Employment Hero's AI candidate-matching engine. Since March 2026 it has been surfaced through Find Talent and ATS applicant scoring, where it ranks job seekers and applicants against employer criteria and feeds a Recruitment Agent that auto-shortlists candidates and runs AI video and phone screening interviews.
Vendor profile
Mercer | Mettl
Mercer | Mettl is an online talent assessment and remote-proctoring platform offering psychometric, aptitude, coding, and skills tests plus AI-assisted exam proctoring and scoring for hiring, certification, and L&D.
§ The record
Employment Hero is filed under Screening AI, Mercer | Mettl under Assessment AI. They also share 1 secondary category: Video interview.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Employment Hero | Mercer | Mettl |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | AU | IN |
| Founded | 2014 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 28% of the movement so far
Article 11 Technical Documentation
Employment Hero 50 · Mercer | Mettl 38
2.4 weighted points to Employment Hero
12% weight · 51% of the movement so far
Human Oversight Design
Employment Hero 62 · Mercer | Mettl 45
2.0 weighted points to Employment Hero
12% weight · 68% of the movement so far
Post-Market Monitoring
Employment Hero 50 · Mercer | Mettl 38
1.4 weighted points to Employment Hero
18% weight · 82% of the movement so far
Bias Audit Transparency
Employment Hero 35 · Mercer | Mettl 42
1.3 weighted points to Mercer | Mettl
8% weight · 91% of the movement so far
Customer Documentation
Employment Hero 62 · Mercer | Mettl 52
0.8 weighted points to Employment Hero
15% weight · 98% of the movement so far
FRIA Support
Employment Hero 32 · Mercer | Mettl 28
0.6 weighted points to Employment Hero
15% weight · 100% of the movement so far
Data Governance Disclosure
Employment Hero 56 · Mercer | Mettl 55
0.1 weighted points to Employment Hero
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +6.2 — the difference between the two totals before either is rounded. Shares are of 8.7 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 +6.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Employment Hero minus Mercer | Mettl.
| Category | Weight | Employment Hero | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 38 | +12 | +2.4 |
| Bias Audit Transparency | 18% | 35 | 42 | -7 | -1.3 |
| FRIA Support | 15% | 32 | 28 | +4 | +0.6 |
| Data Governance Disclosure | 15% | 56 | 55 | +1 | +0.1 |
| Human Oversight Design | 12% | 62 | 45 | +17 | +2.0 |
| Post-Market Monitoring | 12% | 50 | 38 | +12 | +1.4 |
| Customer Documentation | 8% | 62 | 52 | +10 | +0.8 |
| Total | 100% | 48 (F) | 42 (F) | +6 | +6.2 |
§ 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 | Employment Hero | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 1 | — | 0 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 6 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 7 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 5 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 31 | 4 | Sources on the vendor's own domain | 9 | 5 | Sources on the vendor's own domain |
Employment Hero has 35 evidence rows across 7 of 7 criteria — 31 with a source URL, 4 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences.
Provenance
The scores above are documented by 49 evidence rows on file for these two vendors: 35 for Employment Hero, across 1 distinct source domain, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Employment Hero last reviewed
- September 25, 2026 · HireAIScore editorial team
- Mercer | Mettl 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