§ The result
3 points separate Dayforce and Codility.
Dayforce (ATS-integrated) edges Codility (Assessment) by 3 points under rubric v1.0, 57 to 54. Dayforce leads 4 of the 7 criteria, including Article 11 Technical Documentation, while Codility leads 3, including Bias Audit Transparency. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Codility 60, Dayforce 74 — and at a 20% weight it carries 59% of the weighted advantage Dayforce holds across the 4 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
Dayforce
Dayforce is an enterprise human capital management platform whose Dayforce Recruiting module uses AI to assign letter grades to external job applicants, generate job descriptions, and automate screening and hiring workflows alongside HR, payroll, time, talent, and analytics.
§ The record
Codility is filed under Assessment AI, Dayforce under ATS-integrated AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act and Colorado AI Act. Only Codility is in scope of Mobley v. Workday.
| Record | Codility | Dayforce |
|---|---|---|
| Price tier | High | Enterprise |
| Headquarters | GB | US |
| Founded | 2009 | 1992 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 47% of the movement so far
Article 11 Technical Documentation
Codility 60 · Dayforce 74
2.8 weighted points to Dayforce
15% weight · 62% of the movement so far
Data Governance Disclosure
Codility 57 · Dayforce 63
0.9 weighted points to Dayforce
12% weight · 74% of the movement so far
Human Oversight Design
Codility 62 · Dayforce 68
0.7 weighted points to Dayforce
18% weight · 84% of the movement so far
Bias Audit Transparency
Codility 45 · Dayforce 42
0.5 weighted points to Codility
12% weight · 90% of the movement so far
Post-Market Monitoring
Codility 50 · Dayforce 47
0.4 weighted points to Codility
8% weight · 95% of the movement so far
Customer Documentation
Codility 66 · Dayforce 70
0.3 weighted points to Dayforce
15% weight · 100% of the movement so far
FRIA Support
Codility 42 · Dayforce 40
0.3 weighted points to Codility
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -3.5 — the difference between the two totals before either is rounded. Shares are of 5.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -3 beside that -3.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Codility minus Dayforce.
| Category | Weight | Codility | Dayforce | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 74 | -14 | -2.8 |
| Bias Audit Transparency | 18% | 45 | 42 | +3 | +0.5 |
| FRIA Support | 15% | 42 | 40 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 57 | 63 | -6 | -0.9 |
| Human Oversight Design | 12% | 62 | 68 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 50 | 47 | +3 | +0.4 |
| Customer Documentation | 8% | 66 | 70 | -4 | -0.3 |
| Total | 100% | 54 (F) | 57 (F) | -3 | -3.5 |
§ 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 | Dayforce | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 3 | 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 domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 4 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 16 | 4 | Sources on the vendor's own domain | 28 | 6 | Audit reportSources on the vendor's own domain |
Codility has 20 evidence rows across 7 of 7 criteria — 16 with a source URL, 4 documented absences; Dayforce has 34 evidence rows across 7 of 7 criteria — 28 with a source URL, 6 documented absences.
Provenance
The scores above are documented by 54 evidence rows on file for these two vendors: 20 for Codility, across 1 distinct source domain, and 34 for Dayforce, across 1 distinct source domain.
- Rubric
- v1.0
- Codility last reviewed
- July 17, 2026 · HireAIScore editorial team
- Dayforce 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