§ The result
Codility and Plum tie at 54.
Codility and Plum tie at 54 under rubric v1.0 inside the Assessment cohort, arriving there from different criteria. Codility leads 6 of the 7 criteria and Plum 1, yet the two totals land on the same number. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Codility 45, Plum 83 — and at an 18% weight it carries 100% of the weighted advantage Plum holds across the 1 criterion 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
Plum
Plum is a pre-employment talent assessment platform that uses a Five-Factor (Big Five) psychometric Discovery Survey and a Talent Match model to score and rank candidates on behavioral "durable skills" for role fit, hiring, and development.
§ The record
Codility and Plum are both filed under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Codility | Plum |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | GB | CA |
| Founded | 2009 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 53% of the movement so far
Bias Audit Transparency
Codility 45 · Plum 83
6.8 weighted points to Plum
15% weight · 69% of the movement so far
FRIA Support
Codility 42 · Plum 28
2.1 weighted points to Codility
12% weight · 82% of the movement so far
Post-Market Monitoring
Codility 50 · Plum 36
1.7 weighted points to Codility
12% weight · 92% of the movement so far
Human Oversight Design
Codility 62 · Plum 52
1.2 weighted points to Codility
15% weight · 95% of the movement so far
Data Governance Disclosure
Codility 57 · Plum 54
0.4 weighted points to Codility
20% weight · 98% of the movement so far
Article 11 Technical Documentation
Codility 60 · Plum 58
0.4 weighted points to Codility
8% weight · 100% of the movement so far
Customer Documentation
Codility 66 · Plum 63
0.2 weighted points to Codility
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -0.8 — the difference between the two totals before either is rounded. Shares are of 12.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads 0 beside that -0.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Codility minus Plum.
| Category | Weight | Codility | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 58 | +2 | +0.4 |
| Bias Audit Transparency | 18% | 45 | 83 | -38 | -6.8 |
| FRIA Support | 15% | 42 | 28 | +14 | +2.1 |
| Data Governance Disclosure | 15% | 57 | 54 | +3 | +0.4 |
| Human Oversight Design | 12% | 62 | 52 | +10 | +1.2 |
| Post-Market Monitoring | 12% | 50 | 36 | +14 | +1.7 |
| Customer Documentation | 8% | 66 | 63 | +3 | +0.2 |
| Total | 100% | 54 (F) | 54 (F) | - | -0.8 |
§ 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 | Plum | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| 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 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 16 | 4 | Sources on the vendor's own domain | 15 | 4 | 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; Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 documented absences.
Provenance
The scores above are documented by 39 evidence rows on file for these two vendors: 20 for Codility, across 1 distinct source domain, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Codility last reviewed
- July 17, 2026 · HireAIScore editorial team
- Plum 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