§ The result
Wellfound leads CodeSignal by 9 points.
Wellfound scores 52 and CodeSignal 43 under rubric v1.0, a 9-point gap across the Screening and Assessment cohorts. Wellfound leads 4 of the 7 criteria, including Bias Audit Transparency, while CodeSignal leads 3, including Data Governance Disclosure. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — CodeSignal 45, Wellfound 82 — and at an 18% weight it carries 66% of the weighted advantage Wellfound 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
Wellfound
Wellfound is a startup hiring marketplace and AI recruiting platform whose wellfound:ai suite auto-generates screening criteria from a job description, then scores and ranks inbound applicants (AI Resume Screening) and surfaces outbound candidates from a talent graph of 10M opt-in Wellfound profiles plus 500M+ enriched external profiles.
§ The record
CodeSignal is filed under Assessment AI, Wellfound under Screening AI. They record no secondary category in common.
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 | Wellfound |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2015 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 58% of the movement so far
Bias Audit Transparency
CodeSignal 45 · Wellfound 82
6.7 weighted points to Wellfound
12% weight · 80% of the movement so far
Post-Market Monitoring
CodeSignal 38 · Wellfound 60
2.6 weighted points to Wellfound
15% weight · 87% of the movement so far
Data Governance Disclosure
CodeSignal 50 · Wellfound 45
0.8 weighted points to CodeSignal
15% weight · 91% of the movement so far
FRIA Support
CodeSignal 25 · Wellfound 28
0.4 weighted points to Wellfound
20% weight · 94% of the movement so far
Article 11 Technical Documentation
CodeSignal 38 · Wellfound 40
0.4 weighted points to Wellfound
12% weight · 97% of the movement so far
Human Oversight Design
CodeSignal 55 · Wellfound 52
0.4 weighted points to CodeSignal
8% weight · 100% of the movement so far
Customer Documentation
CodeSignal 62 · Wellfound 58
0.3 weighted points to CodeSignal
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -8.7 — the difference between the two totals before either is rounded. Shares are of 11.6 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -9 beside that -8.7.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is CodeSignal minus Wellfound.
| Category | Weight | CodeSignal | Wellfound | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 40 | -2 | -0.4 |
| Bias Audit Transparency | 18% | 45 | 82 | -37 | -6.7 |
| FRIA Support | 15% | 25 | 28 | -3 | -0.4 |
| Data Governance Disclosure | 15% | 50 | 45 | +5 | +0.8 |
| Human Oversight Design | 12% | 55 | 52 | +3 | +0.4 |
| Post-Market Monitoring | 12% | 38 | 60 | -22 | -2.6 |
| Customer Documentation | 8% | 62 | 58 | +4 | +0.3 |
| Total | 100% | 43 (F) | 52 (F) | -9 | -8.7 |
§ 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 | Wellfound | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 2 | Sources on a separate domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 5 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 2 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 3 | 2 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Audit reportSources 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% | 15 | 5 | Sources on the vendor's own domain | 22 | 9 | Audit reportSources on the vendor's own domainSources on a separate domain |
CodeSignal has 20 evidence rows across 7 of 7 criteria — 15 with a source URL, 5 documented absences; Wellfound has 27 evidence rows across 7 of 7 criteria — 22 with a source URL, 9 documented absences; some documentation or audit rows for Wellfound sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 47 evidence rows on file for these two vendors: 20 for CodeSignal, across 1 distinct source domain, and 27 for Wellfound, across 3 distinct source domains.
- Rubric
- v1.0
- CodeSignal last reviewed
- June 7, 2026 · HireAIScore editorial team
- Wellfound last reviewed
- August 2, 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