§ The result
Sapia.ai leads Mercer | Mettl on all 7 criteria.
Sapia.ai sits 14 points above Mercer | Mettl under rubric v1.0, 56 against 42, with both filed under Assessment. Sapia.ai leads every one of the 7 criteria, Mercer | Mettl none of them, and the closest of the 7 is FRIA Support, Mercer | Mettl 28 to Sapia.ai 35. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Mercer | Mettl 38, Sapia.ai 70 — and at a 20% weight it carries 44% of the weighted advantage Sapia.ai holds across the 7 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
Sapia.ai
Structured, text-based chat interview that scores candidates on personality (HEXACO) and competency traits - with no video, audio, or demographic data used.
§ The record
Mercer | Mettl and Sapia.ai are both filed under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Mercer | Mettl | Sapia.ai |
|---|---|---|
| Price tier | Mid | Enterprise |
| Headquarters | IN | AU |
| Founded | 2010 | 2013 |
§ 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 · Sapia.ai 70
6.4 weighted points to Sapia.ai
12% weight · 58% of the movement so far
Human Oversight Design
Mercer | Mettl 45 · Sapia.ai 62
2.0 weighted points to Sapia.ai
18% weight · 70% of the movement so far
Bias Audit Transparency
Mercer | Mettl 42 · Sapia.ai 52
1.8 weighted points to Sapia.ai
12% weight · 80% of the movement so far
Post-Market Monitoring
Mercer | Mettl 38 · Sapia.ai 50
1.4 weighted points to Sapia.ai
15% weight · 87% of the movement so far
FRIA Support
Mercer | Mettl 28 · Sapia.ai 35
1.1 weighted points to Sapia.ai
15% weight · 95% of the movement so far
Data Governance Disclosure
Mercer | Mettl 55 · Sapia.ai 62
1.1 weighted points to Sapia.ai
8% weight · 100% of the movement so far
Customer Documentation
Mercer | Mettl 52 · Sapia.ai 62
0.8 weighted points to Sapia.ai
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -14.6 — the difference between the two totals before either is rounded. Shares are of 14.6 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 -14.6.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercer | Mettl minus Sapia.ai.
| Category | Weight | Mercer | Mettl | Sapia.ai | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 70 | -32 | -6.4 |
| Bias Audit Transparency | 18% | 42 | 52 | -10 | -1.8 |
| FRIA Support | 15% | 28 | 35 | -7 | -1.1 |
| Data Governance Disclosure | 15% | 55 | 62 | -7 | -1.1 |
| Human Oversight Design | 12% | 45 | 62 | -17 | -2.0 |
| Post-Market Monitoring | 12% | 38 | 50 | -12 | -1.4 |
| Customer Documentation | 8% | 52 | 62 | -10 | -0.8 |
| Total | 100% | 42 (F) | 56 (F) | -14 | -14.6 |
§ 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 | Sapia.ai | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 0 | 1 | — | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 0 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 9 | 5 | Sources on the vendor's own domain | 16 | 4 | 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; Sapia.ai has 20 evidence rows across 7 of 7 criteria — 16 with a source URL, 4 documented absences; some documentation or audit rows for Sapia.ai sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 34 evidence rows on file for these two vendors: 14 for Mercer | Mettl, across 2 distinct source domains, and 20 for Sapia.ai, across 2 distinct source domains.
- Rubric
- v1.0
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
- Sapia.ai 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