§ The result
Codility leads Workstream on all 7 criteria.
Under rubric v1.0, Codility (Assessment) opens a 15-point lead on Workstream (Screening), 54 to 39. Codility leads every one of the 7 criteria, Workstream none of them, and the closest of the 7 is Human Oversight Design, Codility 62 to Workstream 61. Even Bias Audit Transparency, the widest raw gap and the heaviest weighted swing (Codility 45, Workstream 20, 18% weight), is only 30% of the weighted advantage Codility builds across the 7 criteria it leads.
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
Workstream
Workstream is a mobile-first HR, payroll and hiring platform for hourly, multi-location employers such as QSR franchisees. Its hiring suite pairs a text-to-apply applicant tracking system with VoiceAI phone screens and VideoAI asynchronous video interviews, which return transcripts, AI summaries, pass/fail results for each question and match scores.
§ The record
Codility is filed under Assessment AI, Workstream 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 | Workstream |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | GB | US |
| Founded | 2009 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 30% of the movement so far
Bias Audit Transparency
Codility 45 · Workstream 20
4.5 weighted points to Codility
20% weight · 57% of the movement so far
Article 11 Technical Documentation
Codility 60 · Workstream 40
4.0 weighted points to Codility
15% weight · 72% of the movement so far
FRIA Support
Codility 42 · Workstream 27
2.3 weighted points to Codility
12% weight · 84% of the movement so far
Post-Market Monitoring
Codility 50 · Workstream 35
1.8 weighted points to Codility
15% weight · 94% of the movement so far
Data Governance Disclosure
Codility 57 · Workstream 47
1.5 weighted points to Codility
8% weight · 99% of the movement so far
Customer Documentation
Codility 66 · Workstream 56
0.8 weighted points to Codility
12% weight · 100% of the movement so far
Human Oversight Design
Codility 62 · Workstream 61
0.1 weighted points to Codility
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +15.0 — the difference between the two totals before either is rounded. Shares are of 15.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +15 beside that +15.0.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Codility minus Workstream.
| Category | Weight | Codility | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 40 | +20 | +4.0 |
| Bias Audit Transparency | 18% | 45 | 20 | +25 | +4.5 |
| FRIA Support | 15% | 42 | 27 | +15 | +2.3 |
| Data Governance Disclosure | 15% | 57 | 47 | +10 | +1.5 |
| Human Oversight Design | 12% | 62 | 61 | +1 | +0.1 |
| Post-Market Monitoring | 12% | 50 | 35 | +15 | +1.8 |
| Customer Documentation | 8% | 66 | 56 | +10 | +0.8 |
| Total | 100% | 54 (F) | 39 (F) | +15 | +15.0 |
§ 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 | Workstream | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 16 | 4 | Sources on the vendor's own domain | 28 | 6 | Sources on the vendor's own domainSources on a separate domain |
Codility has 20 evidence rows across 7 of 7 criteria — 16 with a source URL, 4 documented absences; Workstream has 34 evidence rows across 7 of 7 criteria — 28 with a source URL, 6 documented absences; some documentation or audit rows for Workstream sit on a domain separate from the vendor's own site.
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 Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- Codility last reviewed
- July 17, 2026 · HireAIScore editorial team
- Workstream 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