§ The result
2 points separate JazzHR and Mercer | Mettl.
JazzHR (ATS-integrated) edges Mercer | Mettl (Assessment) by 2 points under rubric v1.0, 44 to 42. JazzHR leads 4 of the 7 criteria, including Human Oversight Design, while Mercer | Mettl leads 2, including Bias Audit Transparency, and 1 is level. Human Oversight Design is both the widest raw gap and the heaviest weighted swing — JazzHR 58, Mercer | Mettl 45 — and at a 12% weight it carries 41% of the weighted advantage JazzHR holds across the 4 criteria on that side of the table.
Vendor profile
JazzHR
JazzHR is a small-business applicant tracking system that manages job posting, applications and hiring workflows, and layers on AI "Talent Fit" scoring that ranks candidates against a job description plus automated knockout screening questions.
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
JazzHR is filed under ATS-integrated 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 | JazzHR | Mercer | Mettl |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | US | IN |
| Founded | 2009 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
12% weight · 29% of the movement so far
Human Oversight Design
JazzHR 58 · Mercer | Mettl 45
1.6 weighted points to JazzHR
20% weight · 54% of the movement so far
Article 11 Technical Documentation
JazzHR 45 · Mercer | Mettl 38
1.4 weighted points to JazzHR
18% weight · 77% of the movement so far
Bias Audit Transparency
JazzHR 35 · Mercer | Mettl 42
1.3 weighted points to Mercer | Mettl
12% weight · 86% of the movement so far
Post-Market Monitoring
JazzHR 42 · Mercer | Mettl 38
0.5 weighted points to JazzHR
15% weight · 94% of the movement so far
Data Governance Disclosure
JazzHR 52 · Mercer | Mettl 55
0.4 weighted points to Mercer | Mettl
8% weight · 100% of the movement so far
Customer Documentation
JazzHR 56 · Mercer | Mettl 52
0.3 weighted points to JazzHR
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +2.1 — the difference between the two totals before either is rounded. Shares are of 5.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +2 beside that +2.1.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is JazzHR minus Mercer | Mettl.
| Category | Weight | JazzHR | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 45 | 38 | +7 | +1.4 |
| Bias Audit Transparency | 18% | 35 | 42 | -7 | -1.3 |
| FRIA Support | 15% | 28 | 28 | - | - |
| Data Governance Disclosure | 15% | 52 | 55 | -3 | -0.4 |
| Human Oversight Design | 12% | 58 | 45 | +13 | +1.6 |
| Post-Market Monitoring | 12% | 42 | 38 | +4 | +0.5 |
| Customer Documentation | 8% | 56 | 52 | +4 | +0.3 |
| Total | 100% | 44 (F) | 42 (F) | +2 | +2.1 |
§ 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 | JazzHR | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domainSources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 0 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 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 domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 17 | 7 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
JazzHR has 24 evidence rows across 7 of 7 criteria — 17 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 JazzHR 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: 24 for JazzHR, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- JazzHR last reviewed
- August 2, 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