§ The result
Personio leads Mercor on all 7 criteria.
Personio finishes 17 points clear of Mercor under rubric v1.0 — 40 against 23 — across the ATS-integrated and Screening cohorts. Personio leads every one of the 7 criteria, Mercor none of them, and the closest of the 7 is Human Oversight Design, Mercor 42 to Personio 48. Data Governance Disclosure is the widest raw gap and the heaviest weighted swing at once (Mercor 22, Personio 52, 15% weight), but it accounts for only 26% of the weighted advantage Personio holds across the 7 criteria on that side of the table.
Vendor profile
Mercor
Mercor is an AI talent platform that runs automated 20-minute AI video interviews and semantic resume/profile matching to vet, score, and place candidates and expert contractors, and offers an enterprise applicant-screening product that scores employers' applicant pools against role rubrics with pass/fail recommendations.
Vendor profile
Personio
Personio is a European cloud HR platform for small and mid-sized companies that combines an HRIS with recruiting/ATS, time tracking, payroll and an AI assistant, and is adding agentic AI candidate sourcing and application screening through its 2026 acquisition of aurio.
§ The record
Mercor is filed under Screening AI, Personio under ATS-integrated AI. They also share 1 secondary category: Sourcing.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Mercor is in scope of Mobley v. Workday.
| Record | Mercor | Personio |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | DE |
| Founded | 2023 | 2015 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 26% of the movement so far
Data Governance Disclosure
Mercor 22 · Personio 52
4.5 weighted points to Personio
20% weight · 47% of the movement so far
Article 11 Technical Documentation
Mercor 22 · Personio 40
3.6 weighted points to Personio
12% weight · 67% of the movement so far
Post-Market Monitoring
Mercor 20 · Personio 48
3.4 weighted points to Personio
18% weight · 82% of the movement so far
Bias Audit Transparency
Mercor 10 · Personio 25
2.7 weighted points to Personio
15% weight · 91% of the movement so far
FRIA Support
Mercor 20 · Personio 30
1.5 weighted points to Personio
8% weight · 96% of the movement so far
Customer Documentation
Mercor 40 · Personio 50
0.8 weighted points to Personio
12% weight · 100% of the movement so far
Human Oversight Design
Mercor 42 · Personio 48
0.7 weighted points to Personio
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -17.2 — the difference between the two totals before either is rounded. Shares are of 17.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -17 beside that -17.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercor minus Personio.
| Category | Weight | Mercor | Personio | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 22 | 40 | -18 | -3.6 |
| Bias Audit Transparency | 18% | 10 | 25 | -15 | -2.7 |
| FRIA Support | 15% | 20 | 30 | -10 | -1.5 |
| Data Governance Disclosure | 15% | 22 | 52 | -30 | -4.5 |
| Human Oversight Design | 12% | 42 | 48 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 20 | 48 | -28 | -3.4 |
| Customer Documentation | 8% | 40 | 50 | -10 | -0.8 |
| Total | 100% | 23 (F) | 40 (F) | -17 | -17.2 |
§ 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 | Mercor | Personio | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 1 | 1 | — | 2 | 2 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 2 | — | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 10 | 8 | Sources on the vendor's own domain | 13 | 8 | Sources on the vendor's own domainSources on a separate domain |
Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 documented absences; Personio has 20 evidence rows across 7 of 7 criteria — 13 with a source URL, 8 documented absences; some documentation or audit rows for Personio sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 36 evidence rows on file for these two vendors: 16 for Mercor, across 4 distinct source domains, and 20 for Personio, across 5 distinct source domains.
- Rubric
- v1.0
- Mercor last reviewed
- June 7, 2026 · HireAIScore editorial team
- Personio last reviewed
- August 2, 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