§ The result
Mercer | Mettl leads Arena Analytics on all 7 criteria.
Mercer | Mettl sits 10 points above Arena Analytics under rubric v1.0 — 42 against 32 — with Mercer | Mettl filed under Assessment and Arena Analytics under Screening. Mercer | Mettl is ahead of Arena Analytics on all 7 criteria but on none of them by as much as 20 raw points, the closest being FRIA Support at Arena Analytics 25 to Mercer | Mettl 28. Bias Audit Transparency is the widest raw gap and the heaviest weighted swing at once (Arena Analytics 25, Mercer | Mettl 42, 18% weight), but it accounts for only 30% of the weighted advantage Mercer | Mettl holds across the 7 criteria on that side of the table.
Vendor profile
Arena Analytics
Arena scores job applicants, mainly for healthcare and senior-living employers, on how likely they are to show up and stay in a specific role at a specific location, reroutes and sources candidates it rates likely to be retained, and applies the same outcome models to employee flight risk and internal mobility.
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
Arena Analytics is filed under Screening AI, Mercer | Mettl under Assessment AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Arena Analytics | Mercer | Mettl |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | IN |
| Founded | 2015 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 30% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · Mercer | Mettl 42
3.1 weighted points to Mercer | Mettl
15% weight · 49% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · Mercer | Mettl 55
1.9 weighted points to Mercer | Mettl
20% weight · 65% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · Mercer | Mettl 38
1.6 weighted points to Mercer | Mettl
12% weight · 76% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · Mercer | Mettl 38
1.2 weighted points to Mercer | Mettl
8% weight · 87% of the movement so far
Customer Documentation
Arena Analytics 38 · Mercer | Mettl 52
1.1 weighted points to Mercer | Mettl
12% weight · 96% of the movement so far
Human Oversight Design
Arena Analytics 38 · Mercer | Mettl 45
0.8 weighted points to Mercer | Mettl
15% weight · 100% of the movement so far
FRIA Support
Arena Analytics 25 · Mercer | Mettl 28
0.4 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -10.2 — the difference between the two totals before either is rounded. Shares are of 10.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -10 beside that -10.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus Mercer | Mettl.
| Category | Weight | Arena Analytics | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 38 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 25 | 42 | -17 | -3.1 |
| FRIA Support | 15% | 25 | 28 | -3 | -0.4 |
| Data Governance Disclosure | 15% | 42 | 55 | -13 | -1.9 |
| Human Oversight Design | 12% | 38 | 45 | -7 | -0.8 |
| Post-Market Monitoring | 12% | 28 | 38 | -10 | -1.2 |
| Customer Documentation | 8% | 38 | 52 | -14 | -1.1 |
| Total | 100% | 32 (F) | 42 (F) | -10 | -10.2 |
§ 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 | Arena Analytics | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 0 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 6 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | 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% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Arena Analytics has 30 evidence rows across 7 of 7 criteria — 23 with a source URL, 7 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Arena Analytics sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 44 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Arena Analytics 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