§ The result
4 points separate Mercer | Mettl and Arya by Leoforce.
Mercer | Mettl holds a 4-point edge over Arya by Leoforce under rubric v1.0, 42 to 38, across the Assessment and Sourcing cohorts. The 7 criteria split 6 to 1 in favour of Mercer | Mettl: Mercer | Mettl is ahead on Article 11 Technical Documentation and Arya by Leoforce on Human Oversight Design. The widest raw gap and the heaviest weighted swing fall on different criteria: Human Oversight Design (Arya by Leoforce 54, Mercer | Mettl 45) and Article 11 Technical Documentation at 20% (Arya by Leoforce 30, Mercer | Mettl 38), the second being 33% of the weighted advantage Mercer | Mettl holds across the 6 criteria on that side of the table.
Vendor profile
Arya by Leoforce
Leoforce's AI agents, successors to its long-running Arya matching platform, source candidates from a proprietary talent database, job boards and customers' ATS records, score and rank them for fit, engage them by email and SMS, prescreen career-site visitors and deliver pre-vetted, interview-ready applicants.
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
Arya by Leoforce is filed under Candidate sourcing AI, Mercer | Mettl under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Mercer | Mettl is in scope of Mobley v. Workday.
| Record | Arya by Leoforce | Mercer | Mettl |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | US | IN |
| Founded | 2012 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 27% of the movement so far
Article 11 Technical Documentation
Arya by Leoforce 30 · Mercer | Mettl 38
1.6 weighted points to Mercer | Mettl
12% weight · 45% of the movement so far
Human Oversight Design
Arya by Leoforce 54 · Mercer | Mettl 45
1.1 weighted points to Arya by Leoforce
15% weight · 62% of the movement so far
Data Governance Disclosure
Arya by Leoforce 48 · Mercer | Mettl 55
1.1 weighted points to Mercer | Mettl
12% weight · 78% of the movement so far
Post-Market Monitoring
Arya by Leoforce 30 · Mercer | Mettl 38
1.0 weighted points to Mercer | Mettl
8% weight · 86% of the movement so far
Customer Documentation
Arya by Leoforce 46 · Mercer | Mettl 52
0.5 weighted points to Mercer | Mettl
15% weight · 94% of the movement so far
FRIA Support
Arya by Leoforce 25 · Mercer | Mettl 28
0.4 weighted points to Mercer | Mettl
18% weight · 100% of the movement so far
Bias Audit Transparency
Arya by Leoforce 40 · Mercer | Mettl 42
0.4 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -3.8 — the difference between the two totals before either is rounded. Shares are of 6.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -4 beside that -3.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arya by Leoforce minus Mercer | Mettl.
| Category | Weight | Arya by Leoforce | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 38 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 40 | 42 | -2 | -0.4 |
| FRIA Support | 15% | 25 | 28 | -3 | -0.4 |
| Data Governance Disclosure | 15% | 48 | 55 | -7 | -1.1 |
| Human Oversight Design | 12% | 54 | 45 | +9 | +1.1 |
| Post-Market Monitoring | 12% | 30 | 38 | -8 | -1.0 |
| Customer Documentation | 8% | 46 | 52 | -6 | -0.5 |
| Total | 100% | 38 (F) | 42 (F) | -4 | -3.8 |
§ 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 | Arya by Leoforce | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| 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% | 4 | 0 | Audit reportSources on the vendor's own domain | 0 | 1 | — |
| FRIA Support | 15% | 1 | 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% | 3 | 2 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 26 | 5 | Audit reportSources on the vendor's own domain | 9 | 5 | Sources on the vendor's own domain |
Arya by Leoforce has 31 evidence rows across 7 of 7 criteria — 26 with a source URL, 5 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 45 evidence rows on file for these two vendors: 31 for Arya by Leoforce, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Arya by Leoforce 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