§ The result
2 points separate CodeSignal and Willo.
CodeSignal (Assessment) edges Willo (Video interview) by 2 points under rubric v1.0, 43 to 41. CodeSignal leads 3 of the 7 criteria, including Bias Audit Transparency, while Willo leads 2, including Human Oversight Design, and 2 are level. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — CodeSignal 45, Willo 30 — and at an 18% weight it carries 75% of the weighted advantage CodeSignal holds across the 3 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
Willo
Willo is a browser-based asynchronous (one-way) video interview platform that lets employers collect recorded video, audio, multiple-choice and written candidate responses, then uses AI to transcribe, summarize, rank candidates against employer-defined "Blueprint" criteria, and flag scripted or AI-generated answers.
§ The record
CodeSignal is filed under Assessment AI, Willo under Video interview 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 | CodeSignal | Willo |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | US | GB |
| Founded | 2015 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 55% of the movement so far
Bias Audit Transparency
CodeSignal 45 · Willo 30
2.7 weighted points to CodeSignal
12% weight · 73% of the movement so far
Human Oversight Design
CodeSignal 55 · Willo 62
0.8 weighted points to Willo
8% weight · 86% of the movement so far
Customer Documentation
CodeSignal 62 · Willo 54
0.6 weighted points to CodeSignal
15% weight · 95% of the movement so far
Data Governance Disclosure
CodeSignal 50 · Willo 53
0.4 weighted points to Willo
12% weight · 100% of the movement so far
Post-Market Monitoring
CodeSignal 38 · Willo 36
0.2 weighted points to CodeSignal
Weighted delta is the raw difference times the criterion weight, so the 5 figures above sum to +2.3 — the difference between the two totals before either is rounded. Shares are of 4.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +2 beside that +2.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is CodeSignal minus Willo.
| Category | Weight | CodeSignal | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 38 | - | - |
| Bias Audit Transparency | 18% | 45 | 30 | +15 | +2.7 |
| FRIA Support | 15% | 25 | 25 | - | - |
| Data Governance Disclosure | 15% | 50 | 53 | -3 | -0.4 |
| Human Oversight Design | 12% | 55 | 62 | -7 | -0.8 |
| Post-Market Monitoring | 12% | 38 | 36 | +2 | +0.2 |
| Customer Documentation | 8% | 62 | 54 | +8 | +0.6 |
| Total | 100% | 43 (F) | 41 (F) | +2 | +2.3 |
§ 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 | Willo | ||||
|---|---|---|---|---|---|---|---|
| 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 | — |
| 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 | 0 | 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 | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 5 | Sources on the vendor's own domain | 9 | 5 | 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; Willo has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences.
Provenance
The scores above are documented by 34 evidence rows on file for these two vendors: 20 for CodeSignal, across 1 distinct source domain, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- CodeSignal last reviewed
- June 7, 2026 · HireAIScore editorial team
- Willo 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