§ The result
3 points separate CodeSignal and Oleeo.
CodeSignal (Assessment) edges Oleeo (ATS-integrated) by 3 points under rubric v1.0, 43 to 40. CodeSignal leads 4 of the 7 criteria, including Post-Market Monitoring, while Oleeo leads 1, including Article 11 Technical Documentation, and 2 are level. Post-Market Monitoring is the widest raw gap and the heaviest weighted swing at once (CodeSignal 38, Oleeo 30, 12% weight), but it accounts for only 30% of the weighted advantage CodeSignal holds across the 4 criteria on that side of the table.
Vendor profile
CodeSignal
CodeSignal is a technical skills assessment and interview platform for developer hiring that adds AI features including an AI Interviewer, AI-assisted/agentic coding assessments, and AI-plus-human proctoring.
Vendor profile
Oleeo
Oleeo is an enterprise applicant tracking and talent acquisition platform that uses machine learning to score, rank, and screen candidates from resumes, applications, and assessment responses, with prescriptive interview and hire recommendations and a stated diversity/bias-mitigation focus.
§ The record
CodeSignal is filed under Assessment AI, Oleeo 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 CodeSignal is in scope of Mobley v. Workday.
| Record | CodeSignal | Oleeo |
|---|---|---|
| Price tier | Enterprise | Enterprise |
| Headquarters | US | GB |
| Founded | 2015 | 1995 |
§ What decides it
The criteria that move the gap, heaviest swing first.
12% weight · 27% of the movement so far
Post-Market Monitoring
CodeSignal 38 · Oleeo 30
1.0 weighted points to CodeSignal
18% weight · 52% of the movement so far
Bias Audit Transparency
CodeSignal 45 · Oleeo 40
0.9 weighted points to CodeSignal
15% weight · 73% of the movement so far
Data Governance Disclosure
CodeSignal 50 · Oleeo 45
0.8 weighted points to CodeSignal
8% weight · 89% of the movement so far
Customer Documentation
CodeSignal 62 · Oleeo 55
0.6 weighted points to CodeSignal
20% weight · 100% of the movement so far
Article 11 Technical Documentation
CodeSignal 38 · Oleeo 40
0.4 weighted points to Oleeo
Weighted delta is the raw difference times the criterion weight, so the 5 figures above sum to +2.8 — the difference between the two totals before either is rounded. Shares are of 3.6 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 +2.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is CodeSignal minus Oleeo.
| Category | Weight | CodeSignal | Oleeo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 40 | -2 | -0.4 |
| Bias Audit Transparency | 18% | 45 | 40 | +5 | +0.9 |
| FRIA Support | 15% | 25 | 25 | - | - |
| Data Governance Disclosure | 15% | 50 | 45 | +5 | +0.8 |
| Human Oversight Design | 12% | 55 | 55 | - | - |
| Post-Market Monitoring | 12% | 38 | 30 | +8 | +1.0 |
| Customer Documentation | 8% | 62 | 55 | +7 | +0.6 |
| Total | 100% | 43 (F) | 40 (F) | +3 | +2.8 |
§ 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 | CodeSignal | Oleeo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources 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 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 5 | Sources on the vendor's own domain | 10 | 6 | Sources on the vendor's own domain |
CodeSignal has 20 evidence rows across 7 of 7 criteria — 15 with a source URL, 5 documented absences; Oleeo has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 6 documented absences.
Provenance
The scores above are documented by 36 evidence rows on file for these two vendors: 20 for CodeSignal, across 1 distinct source domain, and 16 for Oleeo, across 1 distinct source domain.
- Rubric
- v1.0
- CodeSignal last reviewed
- June 7, 2026 · HireAIScore editorial team
- Oleeo 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