§ The result
Eightfold AI leads Mercer | Mettl on all 7 criteria.
Eightfold AI finishes 22 points clear of Mercer | Mettl under rubric v1.0 — 64 (D) against 42 (F) — across the Sourcing and Assessment cohorts. Eightfold AI leads every one of the 7 criteria, Mercer | Mettl none of them, and the closest of the 7 is Data Governance Disclosure, Eightfold AI 60 to Mercer | Mettl 55. Bias Audit Transparency is the widest raw gap and the heaviest weighted swing at once (Eightfold AI 85, Mercer | Mettl 42, 18% weight), but it accounts for only 35% of the weighted advantage Eightfold AI holds across the 7 criteria on that side of the table.
Vendor profile
Eightfold AI
Talent intelligence platform offering candidate matching, internal mobility, and career-site personalization on top of a deep-learning talent graph.
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
Eightfold AI is filed under Candidate sourcing AI, Mercer | Mettl under Assessment AI. They record no secondary category in common.
Both are in scope of EU AI Act, Colorado AI Act and NYC LL 144. Only Mercer | Mettl is in scope of Illinois HB 3773 and Mobley v. Workday.
| Record | Eightfold AI | Mercer | Mettl |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | IN |
| Founded | 2016 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 35% of the movement so far
Bias Audit Transparency
Eightfold AI 85 · Mercer | Mettl 42
7.7 weighted points to Eightfold AI
20% weight · 68% of the movement so far
Article 11 Technical Documentation
Eightfold AI 75 · Mercer | Mettl 38
7.4 weighted points to Eightfold AI
15% weight · 79% of the movement so far
FRIA Support
Eightfold AI 45 · Mercer | Mettl 28
2.5 weighted points to Eightfold AI
12% weight · 87% of the movement so far
Human Oversight Design
Eightfold AI 60 · Mercer | Mettl 45
1.8 weighted points to Eightfold AI
12% weight · 94% of the movement so far
Post-Market Monitoring
Eightfold AI 50 · Mercer | Mettl 38
1.4 weighted points to Eightfold AI
15% weight · 97% of the movement so far
Data Governance Disclosure
Eightfold AI 60 · Mercer | Mettl 55
0.8 weighted points to Eightfold AI
8% weight · 100% of the movement so far
Customer Documentation
Eightfold AI 60 · Mercer | Mettl 52
0.6 weighted points to Eightfold AI
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +22.3 — the difference between the two totals before either is rounded. Shares are of 22.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +22 beside that +22.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Eightfold AI minus Mercer | Mettl.
| Category | Weight | Eightfold AI | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 75 | 38 | +37 | +7.4 |
| Bias Audit Transparency | 18% | 85 | 42 | +43 | +7.7 |
| FRIA Support | 15% | 45 | 28 | +17 | +2.5 |
| Data Governance Disclosure | 15% | 60 | 55 | +5 | +0.8 |
| Human Oversight Design | 12% | 60 | 45 | +15 | +1.8 |
| Post-Market Monitoring | 12% | 50 | 38 | +12 | +1.4 |
| Customer Documentation | 8% | 60 | 52 | +8 | +0.6 |
| Total | 100% | 64 (D) | 42 (F) | +22 | +22.3 |
§ 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 | Eightfold AI | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 1 | 0 | — | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 1 | 0 | — | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 13 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Eightfold AI has 15 evidence rows across 7 of 7 criteria — 13 with a source URL, 2 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 Eightfold AI sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 29 evidence rows on file for these two vendors: 15 for Eightfold AI, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Eightfold AI last reviewed
- May 21, 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