§ The result
Codility leads Emmersion on all 7 criteria.
Rubric v1.0 scores the Assessment entries Codility and Emmersion at 54 and 44, a gap of 10 points. Codility takes all 7 criteria from Emmersion without a 20-point raw gap on any of them; the closest is Article 11 Technical Documentation, Codility 60 to Emmersion 57. Even Bias Audit Transparency, the widest raw gap and the heaviest weighted swing (Codility 45, Emmersion 28, 18% weight), is only 32% 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
Emmersion
Emmersion, Rosetta Stone's assessment division within IXL Learning, sells AI-scored adaptive TrueNorth speaking and writing tests and WebCAPE reading and grammar exams. They rate language proficiency on a 0-10 scale mapped to CEFR and ACTFL and are used for pre-employment screening, checking employees' language skills and placing students.
§ The record
Codility and Emmersion 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 | Emmersion |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | GB | US |
| Founded | 2009 | 2015 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 32% of the movement so far
Bias Audit Transparency
Codility 45 · Emmersion 28
3.1 weighted points to Codility
15% weight · 51% of the movement so far
FRIA Support
Codility 42 · Emmersion 30
1.8 weighted points to Codility
12% weight · 66% of the movement so far
Post-Market Monitoring
Codility 50 · Emmersion 38
1.4 weighted points to Codility
12% weight · 78% of the movement so far
Human Oversight Design
Codility 62 · Emmersion 53
1.1 weighted points to Codility
15% weight · 89% of the movement so far
Data Governance Disclosure
Codility 57 · Emmersion 50
1.1 weighted points to Codility
20% weight · 95% of the movement so far
Article 11 Technical Documentation
Codility 60 · Emmersion 57
0.6 weighted points to Codility
8% weight · 100% of the movement so far
Customer Documentation
Codility 66 · Emmersion 60
0.5 weighted points to Codility
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +9.5 — the difference between the two totals before either is rounded. Shares are of 9.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +10 beside that +9.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Codility minus Emmersion.
| Category | Weight | Codility | Emmersion | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 57 | +3 | +0.6 |
| Bias Audit Transparency | 18% | 45 | 28 | +17 | +3.1 |
| FRIA Support | 15% | 42 | 30 | +12 | +1.8 |
| Data Governance Disclosure | 15% | 57 | 50 | +7 | +1.1 |
| Human Oversight Design | 12% | 62 | 53 | +9 | +1.1 |
| Post-Market Monitoring | 12% | 50 | 38 | +12 | +1.4 |
| Customer Documentation | 8% | 66 | 60 | +6 | +0.5 |
| Total | 100% | 54 (F) | 44 (F) | +10 | +9.5 |
§ 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 | Emmersion | ||||
|---|---|---|---|---|---|---|---|
| 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 domainSources on a separate domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 7 | 1 | Sources on the vendor's own domainSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 6 | 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 domainSources on a separate domain |
| All criteria | 100% | 16 | 4 | Sources on the vendor's own domain | 35 | 5 | 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; Emmersion has 40 evidence rows across 7 of 7 criteria — 35 with a source URL, 5 documented absences; some documentation or audit rows for Emmersion sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 60 evidence rows on file for these two vendors: 20 for Codility, across 1 distinct source domain, and 40 for Emmersion, across 5 distinct source domains.
- Rubric
- v1.0
- Codility last reviewed
- July 17, 2026 · HireAIScore editorial team
- Emmersion 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