§ The result
4 points separate Brainner and Mercer | Mettl.
Brainner holds a 4-point edge over Mercer | Mettl under rubric v1.0, 46 to 42, across the Screening and Assessment cohorts. Brainner leads 5 of the 7 criteria, including Article 11 Technical Documentation, while Mercer | Mettl leads 1, including Data Governance Disclosure, and 1 is level. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Brainner 52, Mercer | Mettl 38 — and at a 20% weight it carries 56% of the weighted advantage Brainner holds across the 5 criteria on that side of the table.
Vendor profile
Brainner
Brainner is an AI screening layer for applicant tracking systems that scores and ranks applicants against recruiter-weighted criteria with per-criterion justifications, and flags suspected fake applicants using third-party identity and fraud data.
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
Brainner is filed under Screening AI, Mercer | Mettl under Assessment AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Mercer | Mettl is in scope of Mobley v. Workday.
| Record | Brainner | Mercer | Mettl |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | US | IN |
| Founded | 2023 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 53% of the movement so far
Article 11 Technical Documentation
Brainner 52 · Mercer | Mettl 38
2.8 weighted points to Brainner
12% weight · 68% of the movement so far
Post-Market Monitoring
Brainner 45 · Mercer | Mettl 38
0.8 weighted points to Brainner
12% weight · 80% of the movement so far
Human Oversight Design
Brainner 50 · Mercer | Mettl 45
0.6 weighted points to Brainner
8% weight · 89% of the movement so far
Customer Documentation
Brainner 58 · Mercer | Mettl 52
0.5 weighted points to Brainner
15% weight · 94% of the movement so far
FRIA Support
Brainner 30 · Mercer | Mettl 28
0.3 weighted points to Brainner
15% weight · 100% of the movement so far
Data Governance Disclosure
Brainner 53 · Mercer | Mettl 55
0.3 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +4.7 — 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 +4 beside that +4.7.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Brainner minus Mercer | Mettl.
| Category | Weight | Brainner | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 52 | 38 | +14 | +2.8 |
| Bias Audit Transparency | 18% | 42 | 42 | - | - |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 53 | 55 | -2 | -0.3 |
| Human Oversight Design | 12% | 50 | 45 | +5 | +0.6 |
| Post-Market Monitoring | 12% | 45 | 38 | +7 | +0.8 |
| Customer Documentation | 8% | 58 | 52 | +6 | +0.5 |
| Total | 100% | 46 (F) | 42 (F) | +4 | +4.7 |
§ 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 | Brainner | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 6 | 0 | Sources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 6 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 33 | 4 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Brainner has 37 evidence rows across 7 of 7 criteria — 33 with a source URL, 4 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 Brainner sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 51 evidence rows on file for these two vendors: 37 for Brainner, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Brainner 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