§ The result
Arena Analytics leads Mercor by 9 points.
Inside the Screening cohort, rubric v1.0 puts Arena Analytics on 32 and Mercor on 23, 9 points apart. Mercor takes 2 of the 7 criteria, Human Oversight Design among them, against 5 for Arena Analytics, whose share includes Data Governance Disclosure. Even Data Governance Disclosure, the widest raw gap and the heaviest weighted swing (Arena Analytics 42, Mercor 22, 15% weight), is only 33% of the weighted advantage Arena Analytics builds across the 5 criteria it leads.
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
Mercor
Mercor is an AI talent platform that runs automated 20-minute AI video interviews and semantic resume/profile matching to vet, score, and place candidates and expert contractors, and offers an enterprise applicant-screening product that scores employers' applicant pools against role rubrics with pass/fail recommendations.
§ The record
Arena Analytics and Mercor are both filed under Screening AI. They also share 1 secondary category: Sourcing.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Arena Analytics | Mercor |
|---|---|---|
| Price tier | Enterprise | Enterprise |
| Headquarters | US | US |
| Founded | 2015 | 2023 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 31% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · Mercor 22
3.0 weighted points to Arena Analytics
18% weight · 59% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · Mercor 10
2.7 weighted points to Arena Analytics
20% weight · 76% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · Mercor 22
1.6 weighted points to Arena Analytics
12% weight · 86% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · Mercor 20
1.0 weighted points to Arena Analytics
15% weight · 93% of the movement so far
FRIA Support
Arena Analytics 25 · Mercor 20
0.8 weighted points to Arena Analytics
12% weight · 98% of the movement so far
Human Oversight Design
Arena Analytics 38 · Mercor 42
0.5 weighted points to Mercor
8% weight · 100% of the movement so far
Customer Documentation
Arena Analytics 38 · Mercor 40
0.2 weighted points to Mercor
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +8.4 — the difference between the two totals before either is rounded. Shares are of 9.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +9 beside that +8.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus Mercor.
| Category | Weight | Arena Analytics | Mercor | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 22 | +8 | +1.6 |
| Bias Audit Transparency | 18% | 25 | 10 | +15 | +2.7 |
| FRIA Support | 15% | 25 | 20 | +5 | +0.8 |
| Data Governance Disclosure | 15% | 42 | 22 | +20 | +3.0 |
| Human Oversight Design | 12% | 38 | 42 | -4 | -0.5 |
| Post-Market Monitoring | 12% | 28 | 20 | +8 | +1.0 |
| Customer Documentation | 8% | 38 | 40 | -2 | -0.2 |
| Total | 100% | 32 (F) | 23 (F) | +9 | +8.4 |
§ 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 | Mercor | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 2 | — |
| Data Governance Disclosure | 15% | 6 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 10 | 8 | 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; Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 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 46 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 16 for Mercor, across 4 distinct source domains.
- Rubric
- v1.0
- Arena Analytics last reviewed
- September 25, 2026 · HireAIScore editorial team
- Mercor 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