§ The result
Paycor leads Mercor on all 7 criteria.
Under rubric v1.0, Paycor (ATS-integrated) opens a 17-point lead on Mercor (Screening), 40 to 23. Paycor takes all 7 criteria and Mercor none of them; the nearest contest is FRIA Support, Mercor 20 to Paycor 27. Even Data Governance Disclosure, the widest raw gap and the heaviest weighted swing (Mercor 22, Paycor 50, 15% weight), is only 26% of the weighted advantage Paycor builds across the 7 criteria it leads.
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
Paycor
Paycor, a Paychex company, sells a mid-market HR and payroll suite whose recruiting tools include the Paycor Recruiting ATS, Paycor Smart Sourcing (formerly Talenya), which uses AI to build a prioritized list of passive and active candidates for each role and automate outreach, and a WISE assistant that phone-screens candidates and scores their answers.
§ The record
Mercor is filed under Screening AI, Paycor 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 | Paycor |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2023 | 1990 |
§ 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 · Paycor 50
4.2 weighted points to Paycor
20% weight · 47% of the movement so far
Article 11 Technical Documentation
Mercor 22 · Paycor 40
3.6 weighted points to Paycor
18% weight · 64% of the movement so far
Bias Audit Transparency
Mercor 10 · Paycor 25
2.7 weighted points to Paycor
12% weight · 77% of the movement so far
Post-Market Monitoring
Mercor 20 · Paycor 38
2.2 weighted points to Paycor
12% weight · 86% of the movement so far
Human Oversight Design
Mercor 42 · Paycor 55
1.6 weighted points to Paycor
8% weight · 94% of the movement so far
Customer Documentation
Mercor 40 · Paycor 55
1.2 weighted points to Paycor
15% weight · 100% of the movement so far
FRIA Support
Mercor 20 · Paycor 27
1.1 weighted points to Paycor
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -16.5 — the difference between the two totals before either is rounded. Shares are of 16.5 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 -16.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercor minus Paycor.
| Category | Weight | Mercor | Paycor | 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 | 27 | -7 | -1.1 |
| Data Governance Disclosure | 15% | 22 | 50 | -28 | -4.2 |
| Human Oversight Design | 12% | 42 | 55 | -13 | -1.6 |
| Post-Market Monitoring | 12% | 20 | 38 | -18 | -2.2 |
| Customer Documentation | 8% | 40 | 55 | -15 | -1.2 |
| Total | 100% | 23 (F) | 40 (F) | -17 | -16.5 |
§ 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 | Paycor | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 1 | 1 | — | 3 | 1 | — |
| FRIA Support | 15% | 1 | 2 | — | 1 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 10 | 8 | Sources on the vendor's own domain | 24 | 6 | Audit reportSources 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; Paycor has 30 evidence rows across 7 of 7 criteria — 24 with a source URL, 6 documented absences; some documentation or audit rows for Paycor sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 46 evidence rows on file for these two vendors: 16 for Mercor, across 4 distinct source domains, and 30 for Paycor, across 6 distinct source domains.
- Rubric
- v1.0
- Mercor last reviewed
- June 7, 2026 · HireAIScore editorial team
- Paycor last reviewed
- September 25, 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