Side-by-side · Rubric v1.0
Greenhouse vs Mercer | Mettl
Greenhouse
End-to-end applicant tracking system and structured-hiring platform, now layered with 'Greenhouse AI' features such as resume parsing, Talent Matching, and interview summarisation.
Concerning
ATS-integrated
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.
Substantial gaps
Assessment
The result
Greenhouse leads Mercer | Mettl on all 7 criteria.
Greenhouse (ATS-integrated) and Mercer | Mettl (Assessment) are 25 points apart under rubric v1.0, 67 (D) for Greenhouse against 42 (F) for Mercer | Mettl. Mercer | Mettl leads none of the 7 criteria, and Greenhouse is ahead on 4 of them by 20 raw points or more, Article 11 Technical Documentation among them. The widest raw gap and the heaviest weighted swing fall on different criteria: Bias Audit Transparency (Greenhouse 86, Mercer | Mettl 42) and Article 11 Technical Documentation at 20% (Greenhouse 78, Mercer | Mettl 38), the second being 32% of the weighted advantage Greenhouse holds across the 7 criteria on that side of the table.
Criteria won
7 criteria
- Greenhouse7
- Mercer | Mettl0
- Widest raw gap
- Bias Audit Transparency86 vs 42
- Heaviest weighted swing
- Article 11 Technical Documentation20% weight
Keep this comparison
Both scores and all 7 criteria, side by side, in your inbox.
The record
Categories, scope and company facts.
Greenhouse is filed under ATS-integrated AI, Mercer | Mettl under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of
Only Mercer | Mettl is in scope of
| Record | Greenhouse | Mercer | Mettl |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | IN |
| Founded | 2012 | 2010 |
What decides it
The criteria that move the gap, heaviest swing first.
- 1
Article 11 Technical Documentation
20% weight32% of the movement so far
Greenhouse78Mercer | Mettl388.0 weighted points to Greenhouse
- 2
Bias Audit Transparency
18% weight63% of the movement so far
Greenhouse86Mercer | Mettl427.9 weighted points to Greenhouse
- 3
Human Oversight Design
12% weight73% of the movement so far
Greenhouse66Mercer | Mettl452.5 weighted points to Greenhouse
- 4
Post-Market Monitoring
12% weight83% of the movement so far
Greenhouse58Mercer | Mettl382.4 weighted points to Greenhouse
- 5
FRIA Support
15% weight91% of the movement so far
Greenhouse42Mercer | Mettl282.1 weighted points to Greenhouse
- 6
Data Governance Disclosure
15% weight96% of the movement so far
Greenhouse64Mercer | Mettl551.3 weighted points to Greenhouse
- 7
Customer Documentation
8% weight100% of the movement so far
Greenhouse64Mercer | Mettl521.0 weighted points to Greenhouse
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +25.3 — the difference between the two totals before either is rounded. Shares are of 25.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +25 beside that +25.3.
Category-by-category
Raw score per criterion, with weighted delta.
Δ is Greenhouse minus Mercer | Mettl, coloured for whichever of the two it favours.
| Category | Weight | Greenhouse | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 78 | 38 | +40 | +8.0 |
| Bias Audit Transparency | 18% | 86 | 42 | +44 | +7.9 |
| FRIA Support | 15% | 42 | 28 | +14 | +2.1 |
| Data Governance Disclosure | 15% | 64 | 55 | +9 | +1.3 |
| Human Oversight Design | 12% | 66 | 45 | +21 | +2.5 |
| Post-Market Monitoring | 12% | 58 | 38 | +20 | +2.4 |
| Customer Documentation | 8% | 64 | 52 | +12 | +1.0 |
| Total | 100% | 67D | 42F | +25 | +25.3 |
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 | Greenhouse | 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% | 2 | 0 | Audit reportSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 0 | Sources on the vendor's own domain | 2 | 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% | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 16 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Greenhouse has 17 evidence rows across 7 of 7 criteria — 16 with a source URL, 1 documented absence; 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 Greenhouse sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 31 evidence rows on file for these two vendors: 17 for Greenhouse, across 3 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Greenhouse last reviewed
- June 7, 2026 · HireAIScore editorial team
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
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