§ The result
3 points separate Mercer | Mettl and Canditech.
Within the Assessment cohort, Mercer | Mettl edges Canditech by 3 points under rubric v1.0, 42 to 39. Mercer | Mettl leads 4 of the 7 criteria, including Bias Audit Transparency, while Canditech leads 3, including Human Oversight Design. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Canditech 25, Mercer | Mettl 42 — and at an 18% weight it carries 69% of the weighted advantage Mercer | Mettl holds across the 4 criteria on that side of the table.
Vendor profile
Canditech
Canditech is a skills-assessment and job-simulation platform that screens candidates with work-sample tests, technical and soft-skill assessments, and one-way video interviews, using AI agents to auto-score open-text and video responses.
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
Canditech and Mercer | Mettl are both filed under Assessment AI. They also share 2 secondary categories: Screening and Video interview.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Canditech | Mercer | Mettl |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | IL | IN |
| Founded | 2019 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 50% of the movement so far
Bias Audit Transparency
Canditech 25 · Mercer | Mettl 42
3.1 weighted points to Mercer | Mettl
12% weight · 65% of the movement so far
Human Oversight Design
Canditech 53 · Mercer | Mettl 45
1.0 weighted points to Canditech
12% weight · 77% of the movement so far
Post-Market Monitoring
Canditech 32 · Mercer | Mettl 38
0.7 weighted points to Mercer | Mettl
8% weight · 85% of the movement so far
Customer Documentation
Canditech 58 · Mercer | Mettl 52
0.5 weighted points to Canditech
15% weight · 92% of the movement so far
Data Governance Disclosure
Canditech 52 · Mercer | Mettl 55
0.4 weighted points to Mercer | Mettl
15% weight · 97% of the movement so far
FRIA Support
Canditech 30 · Mercer | Mettl 28
0.3 weighted points to Canditech
20% weight · 100% of the movement so far
Article 11 Technical Documentation
Canditech 37 · Mercer | Mettl 38
0.2 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -2.7 — the difference between the two totals before either is rounded. Shares are of 6.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -3 beside that -2.7.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Canditech minus Mercer | Mettl.
| Category | Weight | Canditech | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 37 | 38 | -1 | -0.2 |
| Bias Audit Transparency | 18% | 25 | 42 | -17 | -3.1 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 52 | 55 | -3 | -0.4 |
| Human Oversight Design | 12% | 53 | 45 | +8 | +1.0 |
| Post-Market Monitoring | 12% | 32 | 38 | -6 | -0.7 |
| Customer Documentation | 8% | 58 | 52 | +6 | +0.5 |
| Total | 100% | 39 (F) | 42 (F) | -3 | -2.7 |
§ 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 | Canditech | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 1 | 1 | — | 0 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | 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 | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 11 | 7 | Sources on the vendor's own domain | 9 | 5 | Sources on the vendor's own domain |
Canditech has 18 evidence rows across 7 of 7 criteria — 11 with a source URL, 7 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences.
Provenance
The scores above are documented by 32 evidence rows on file for these two vendors: 18 for Canditech, across 1 distinct source domain, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Canditech last reviewed
- July 17, 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