§ The result
LinkedIn Recruiter leads Mercer | Mettl on all 7 criteria.
LinkedIn Recruiter finishes 15 points clear of Mercer | Mettl under rubric v1.0 — 57 against 42 — across the Sourcing and Assessment cohorts. LinkedIn Recruiter leads every one of the 7 criteria, Mercer | Mettl none of them, and the closest of the 7 is Data Governance Disclosure, LinkedIn Recruiter 62 to Mercer | Mettl 55. The advantage LinkedIn Recruiter holds is spread out: Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing (LinkedIn Recruiter 67, Mercer | Mettl 38, 20% weight), yet it supplies only 39% of the weighted points LinkedIn Recruiter gains across the 7 criteria it leads.
Vendor profile
LinkedIn Recruiter
LinkedIn Recruiter is LinkedIn's enterprise sourcing and candidate-management platform, whose Hiring Assistant add-on and AI-Assisted Search use AI to turn intake notes into qualifications, source and rank candidates, evaluate applicants against recruiter-set qualifications, and draft or send outreach.
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
LinkedIn Recruiter is filed under Candidate sourcing AI, Mercer | Mettl under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of EU AI Act, Colorado AI Act, NYC LL 144 and Illinois HB 3773. Only Mercer | Mettl is in scope of Mobley v. Workday.
| Record | LinkedIn Recruiter | Mercer | Mettl |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | IN |
| Founded | 2002 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 39% of the movement so far
Article 11 Technical Documentation
LinkedIn Recruiter 67 · Mercer | Mettl 38
5.8 weighted points to LinkedIn Recruiter
12% weight · 55% of the movement so far
Human Oversight Design
LinkedIn Recruiter 66 · Mercer | Mettl 45
2.5 weighted points to LinkedIn Recruiter
15% weight · 65% of the movement so far
FRIA Support
LinkedIn Recruiter 38 · Mercer | Mettl 28
1.5 weighted points to LinkedIn Recruiter
18% weight · 75% of the movement so far
Bias Audit Transparency
LinkedIn Recruiter 50 · Mercer | Mettl 42
1.4 weighted points to LinkedIn Recruiter
12% weight · 84% of the movement so far
Post-Market Monitoring
LinkedIn Recruiter 50 · Mercer | Mettl 38
1.4 weighted points to LinkedIn Recruiter
8% weight · 93% of the movement so far
Customer Documentation
LinkedIn Recruiter 68 · Mercer | Mettl 52
1.3 weighted points to LinkedIn Recruiter
15% weight · 100% of the movement so far
Data Governance Disclosure
LinkedIn Recruiter 62 · Mercer | Mettl 55
1.1 weighted points to LinkedIn Recruiter
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +15.0 — the difference between the two totals before either is rounded. Shares are of 15.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +15 beside that +15.0.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is LinkedIn Recruiter minus Mercer | Mettl.
| Category | Weight | LinkedIn Recruiter | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 67 | 38 | +29 | +5.8 |
| Bias Audit Transparency | 18% | 50 | 42 | +8 | +1.4 |
| FRIA Support | 15% | 38 | 28 | +10 | +1.5 |
| Data Governance Disclosure | 15% | 62 | 55 | +7 | +1.1 |
| Human Oversight Design | 12% | 66 | 45 | +21 | +2.5 |
| Post-Market Monitoring | 12% | 50 | 38 | +12 | +1.4 |
| Customer Documentation | 8% | 68 | 52 | +16 | +1.3 |
| Total | 100% | 57 (F) | 42 (F) | +15 | +15.0 |
§ 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 | LinkedIn Recruiter | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 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% | 4 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 5 | 0 | Sources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 6 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 6 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 34 | 5 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
LinkedIn Recruiter has 39 evidence rows across 7 of 7 criteria — 34 with a source URL, 5 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 LinkedIn Recruiter sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 53 evidence rows on file for these two vendors: 39 for LinkedIn Recruiter, across 6 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- LinkedIn Recruiter 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