§ The result
Codility leads Mercor on all 7 criteria.
Rubric v1.0 puts 31 points between Codility (Assessment) and Mercor (Screening): 54 for Codility, 23 for Mercor. Codility is ahead of Mercor on all 7 criteria, every one of them by 20 raw points or more. Article 11 Technical Documentation is the widest raw gap and the heaviest weighted swing at once (Codility 60, Mercor 22, 20% weight), but it accounts for only 25% of the weighted advantage Codility holds across the 7 criteria on that side of the table.
Vendor profile
Codility
Codility is a technical/coding assessment platform that screens and interviews software engineers with work-sample coding tests, live technical interviews, and integrity tooling including plagiarism and AI-use detection.
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.
§ The record
Codility is filed under Assessment AI, Mercor under Screening AI. They record no secondary category in common.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Codility | Mercor |
|---|---|---|
| Price tier | High | Enterprise |
| Headquarters | GB | US |
| Founded | 2009 | 2023 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 25% of the movement so far
Article 11 Technical Documentation
Codility 60 · Mercor 22
7.6 weighted points to Codility
18% weight · 46% of the movement so far
Bias Audit Transparency
Codility 45 · Mercor 10
6.3 weighted points to Codility
15% weight · 63% of the movement so far
Data Governance Disclosure
Codility 57 · Mercor 22
5.3 weighted points to Codility
12% weight · 75% of the movement so far
Post-Market Monitoring
Codility 50 · Mercor 20
3.6 weighted points to Codility
15% weight · 85% of the movement so far
FRIA Support
Codility 42 · Mercor 20
3.3 weighted points to Codility
12% weight · 93% of the movement so far
Human Oversight Design
Codility 62 · Mercor 42
2.4 weighted points to Codility
8% weight · 100% of the movement so far
Customer Documentation
Codility 66 · Mercor 40
2.1 weighted points to Codility
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +30.5 — the difference between the two totals before either is rounded. Shares are of 30.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +31 beside that +30.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Codility minus Mercor.
| Category | Weight | Codility | Mercor | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 22 | +38 | +7.6 |
| Bias Audit Transparency | 18% | 45 | 10 | +35 | +6.3 |
| FRIA Support | 15% | 42 | 20 | +22 | +3.3 |
| Data Governance Disclosure | 15% | 57 | 22 | +35 | +5.3 |
| Human Oversight Design | 12% | 62 | 42 | +20 | +2.4 |
| Post-Market Monitoring | 12% | 50 | 20 | +30 | +3.6 |
| Customer Documentation | 8% | 66 | 40 | +26 | +2.1 |
| Total | 100% | 54 (F) | 23 (F) | +31 | +30.5 |
§ 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 | Codility | Mercor | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 2 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domain | 1 | 1 | — |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 16 | 4 | Sources on the vendor's own domain | 10 | 8 | Sources on the vendor's own domain |
Codility has 20 evidence rows across 7 of 7 criteria — 16 with a source URL, 4 documented absences; Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 documented absences.
Provenance
The scores above are documented by 36 evidence rows on file for these two vendors: 20 for Codility, across 1 distinct source domain, and 16 for Mercor, across 4 distinct source domains.
- Rubric
- v1.0
- Codility last reviewed
- July 17, 2026 · HireAIScore editorial team
- Mercor 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