§ The result
Workday Recruiting AI leads Mercer | Mettl by 14 points.
Workday Recruiting AI sits 14 points above Mercer | Mettl under rubric v1.0 — 56 against 42 — with Workday Recruiting AI filed under ATS-integrated and Mercer | Mettl under Assessment. Workday Recruiting AI leads 5 of the 7 criteria, including Article 11 Technical Documentation, while Mercer | Mettl leads 1, including Post-Market Monitoring, and 1 is level. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Mercer | Mettl 38, Workday Recruiting AI 70 — and at a 20% weight it carries 45% of the weighted advantage Workday Recruiting AI holds across the 5 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
Workday Recruiting AI
AI features built into Workday Recruiting, including candidate-skill matching and recruiter productivity tools, surfaced inside the Workday ATS.
§ The record
Mercer | Mettl is filed under Assessment AI, Workday Recruiting AI under ATS-integrated AI. They record no secondary category in common.
Both are in scope of NYC LL 144, EU AI Act and Colorado AI Act. Only Mercer | Mettl is in scope of Illinois HB 3773 and Mobley v. Workday.
| Record | Mercer | Mettl | Workday Recruiting AI |
|---|---|---|
| Price tier | Mid | Enterprise |
| Headquarters | IN | US |
| Founded | 2010 | 2005 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 44% of the movement so far
Article 11 Technical Documentation
Mercer | Mettl 38 · Workday Recruiting AI 70
6.4 weighted points to Workday Recruiting AI
18% weight · 67% of the movement so far
Bias Audit Transparency
Mercer | Mettl 42 · Workday Recruiting AI 60
3.2 weighted points to Workday Recruiting AI
12% weight · 83% of the movement so far
Human Oversight Design
Mercer | Mettl 45 · Workday Recruiting AI 65
2.4 weighted points to Workday Recruiting AI
15% weight · 90% of the movement so far
FRIA Support
Mercer | Mettl 28 · Workday Recruiting AI 35
1.1 weighted points to Workday Recruiting AI
8% weight · 98% of the movement so far
Customer Documentation
Mercer | Mettl 52 · Workday Recruiting AI 65
1.0 weighted points to Workday Recruiting AI
12% weight · 100% of the movement so far
Post-Market Monitoring
Mercer | Mettl 38 · Workday Recruiting AI 35
0.4 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -13.8 — the difference between the two totals before either is rounded. Shares are of 14.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -14 beside that -13.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercer | Mettl minus Workday Recruiting AI.
| Category | Weight | Mercer | Mettl | Workday Recruiting AI | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 70 | -32 | -6.4 |
| Bias Audit Transparency | 18% | 42 | 60 | -18 | -3.2 |
| FRIA Support | 15% | 28 | 35 | -7 | -1.1 |
| Data Governance Disclosure | 15% | 55 | 55 | - | - |
| Human Oversight Design | 12% | 45 | 65 | -20 | -2.4 |
| Post-Market Monitoring | 12% | 38 | 35 | +3 | +0.4 |
| Customer Documentation | 8% | 52 | 65 | -13 | -1.0 |
| Total | 100% | 42 (F) | 56 (F) | -14 | -13.8 |
§ 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 | Mercer | Mettl | Workday Recruiting AI | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 0 | 1 | — | 1 | 0 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | — | 1 | 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 | 0 | 1 | — |
| 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 | 9 | 2 | Audit reportSources on the vendor's own domain |
Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; Workday Recruiting AI has 11 evidence rows across 7 of 7 criteria — 9 with a source URL, 2 documented absences.
Provenance
The scores above are documented by 25 evidence rows on file for these two vendors: 14 for Mercer | Mettl, across 2 distinct source domains, and 11 for Workday Recruiting AI, across 1 distinct source domain.
- Rubric
- v1.0
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
- Workday Recruiting AI 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.