§ The result
2 points separate Fountain and Mercer | Mettl.
Fountain (Screening) edges Mercer | Mettl (Assessment) by 2 points under rubric v1.0, 44 to 42. Fountain leads 4 of the 7 criteria, including Article 11 Technical Documentation, while Mercer | Mettl leads 1, including Bias Audit Transparency, and 2 are level. Fountain takes the heaviest weighted swing, Article 11 Technical Documentation at 20% (Fountain 50, Mercer | Mettl 38), which is 53% of the weighted advantage Fountain holds; the widest raw gap is a different criterion, Human Oversight Design, Fountain 58 to Mercer | Mettl 45.
Vendor profile
Fountain
AI-powered high-volume hiring platform that automates sourcing, applicant screening (including a voice-based AI Recruiter), interview scheduling, and onboarding for frontline workforces.
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
Fountain 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 | Fountain | Mercer | Mettl |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | IN |
| Founded | 2014 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 36% of the movement so far
Article 11 Technical Documentation
Fountain 50 · Mercer | Mettl 38
2.4 weighted points to Fountain
18% weight · 68% of the movement so far
Bias Audit Transparency
Fountain 30 · Mercer | Mettl 42
2.2 weighted points to Mercer | Mettl
12% weight · 92% of the movement so far
Human Oversight Design
Fountain 58 · Mercer | Mettl 45
1.6 weighted points to Fountain
15% weight · 96% of the movement so far
FRIA Support
Fountain 30 · Mercer | Mettl 28
0.3 weighted points to Fountain
12% weight · 100% of the movement so far
Post-Market Monitoring
Fountain 40 · Mercer | Mettl 38
0.2 weighted points to Fountain
Weighted delta is the raw difference times the criterion weight, so the 5 figures above sum to +2.3 — the difference between the two totals before either is rounded. Shares are of 6.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +2 beside that +2.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Fountain minus Mercer | Mettl.
| Category | Weight | Fountain | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 38 | +12 | +2.4 |
| Bias Audit Transparency | 18% | 30 | 42 | -12 | -2.2 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 55 | 55 | - | - |
| Human Oversight Design | 12% | 58 | 45 | +13 | +1.6 |
| Post-Market Monitoring | 12% | 40 | 38 | +2 | +0.2 |
| Customer Documentation | 8% | 52 | 52 | - | - |
| Total | 100% | 44 (F) | 42 (F) | +2 | +2.3 |
§ 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 | Fountain | 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% | 2 | 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% | 3 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 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% | 14 | 6 | Sources on the vendor's own domain | 9 | 5 | Sources on the vendor's own domain |
Fountain has 20 evidence rows across 7 of 7 criteria — 14 with a source URL, 6 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 34 evidence rows on file for these two vendors: 20 for Fountain, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Fountain last reviewed
- June 7, 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