§ The result
1 point separates Mercer | Mettl and Paradox.
Mercer | Mettl (Assessment) edges Paradox (Scheduling) by 1 point under rubric v1.0, 42 to 41. Mercer | Mettl leads 4 of the 7 criteria, including Data Governance Disclosure, while Paradox leads 3, including Bias Audit Transparency. Data Governance Disclosure is both the widest raw gap and the heaviest weighted swing — Mercer | Mettl 55, Paradox 45 — and at a 15% weight it carries 52% of the weighted advantage Mercer | Mettl holds across the 4 criteria on that side of the table.
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.
Vendor profile
Paradox
Conversational AI ("Olivia") that screens, schedules, and engages candidates over chat and SMS, often deployed on top of an existing ATS.
§ The record
Mercer | Mettl is filed under Assessment AI, Paradox under Scheduling AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act and Colorado AI Act. Only Mercer | Mettl is in scope of Mobley v. Workday.
| Record | Mercer | Mettl | Paradox |
|---|---|---|
| Price tier | Mid | Enterprise |
| Headquarters | IN | US |
| Founded | 2010 | 2016 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 28% of the movement so far
Data Governance Disclosure
Mercer | Mettl 55 · Paradox 45
1.5 weighted points to Mercer | Mettl
18% weight · 55% of the movement so far
Bias Audit Transparency
Mercer | Mettl 42 · Paradox 50
1.4 weighted points to Paradox
12% weight · 67% of the movement so far
Human Oversight Design
Mercer | Mettl 45 · Paradox 50
0.6 weighted points to Paradox
8% weight · 77% of the movement so far
Customer Documentation
Mercer | Mettl 52 · Paradox 45
0.6 weighted points to Mercer | Mettl
15% weight · 86% of the movement so far
FRIA Support
Mercer | Mettl 28 · Paradox 25
0.4 weighted points to Mercer | Mettl
20% weight · 93% of the movement so far
Article 11 Technical Documentation
Mercer | Mettl 38 · Paradox 40
0.4 weighted points to Paradox
12% weight · 100% of the movement so far
Post-Market Monitoring
Mercer | Mettl 38 · Paradox 35
0.4 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +0.4 — the difference between the two totals before either is rounded. Shares are of 5.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +1 beside that +0.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercer | Mettl minus Paradox.
| Category | Weight | Mercer | Mettl | Paradox | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 40 | -2 | -0.4 |
| Bias Audit Transparency | 18% | 42 | 50 | -8 | -1.4 |
| FRIA Support | 15% | 28 | 25 | +3 | +0.4 |
| Data Governance Disclosure | 15% | 55 | 45 | +10 | +1.5 |
| Human Oversight Design | 12% | 45 | 50 | -5 | -0.6 |
| Post-Market Monitoring | 12% | 38 | 35 | +3 | +0.4 |
| Customer Documentation | 8% | 52 | 45 | +7 | +0.6 |
| Total | 100% | 42 (F) | 41 (F) | +1 | +0.4 |
§ 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 | Mercer | Mettl | Paradox | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 0 | 1 | — | 2 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | — | 0 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 0 | Sources on the vendor's own domain | 1 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 1 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 1 | 0 | — |
| Customer Documentation | 8% | 1 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 9 | 5 | Sources on the vendor's own domain | 8 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain |
Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; Paradox has 10 evidence rows across 7 of 7 criteria — 8 with a source URL, 2 documented absences; some documentation or audit rows for Paradox sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 24 evidence rows on file for these two vendors: 14 for Mercer | Mettl, across 2 distinct source domains, and 10 for Paradox, across 2 distinct source domains.
- Rubric
- v1.0
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
- Paradox last reviewed
- May 21, 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