§ The result
4 points separate CodeSignal and Workstream.
CodeSignal holds a 4-point edge over Workstream under rubric v1.0, 43 to 39, across the Assessment and Screening cohorts. CodeSignal leads 4 of the 7 criteria, including Bias Audit Transparency, while Workstream leads 3, including Human Oversight Design. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — CodeSignal 45, Workstream 20 — and at an 18% weight it carries 78% 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
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
CodeSignal is filed under Assessment AI, Workstream under Screening AI. They also share 1 secondary category: Video interview.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | CodeSignal | Workstream |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2015 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 62% of the movement so far
Bias Audit Transparency
CodeSignal 45 · Workstream 20
4.5 weighted points to CodeSignal
12% weight · 72% of the movement so far
Human Oversight Design
CodeSignal 55 · Workstream 61
0.7 weighted points to Workstream
8% weight · 79% of the movement so far
Customer Documentation
CodeSignal 62 · Workstream 56
0.5 weighted points to CodeSignal
15% weight · 85% of the movement so far
Data Governance Disclosure
CodeSignal 50 · Workstream 47
0.4 weighted points to CodeSignal
20% weight · 91% of the movement so far
Article 11 Technical Documentation
CodeSignal 38 · Workstream 40
0.4 weighted points to Workstream
12% weight · 96% of the movement so far
Post-Market Monitoring
CodeSignal 38 · Workstream 35
0.4 weighted points to CodeSignal
15% weight · 100% of the movement so far
FRIA Support
CodeSignal 25 · Workstream 27
0.3 weighted points to Workstream
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +4.4 — the difference between the two totals before either is rounded. Shares are of 7.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +4 beside that +4.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is CodeSignal minus Workstream.
| Category | Weight | CodeSignal | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 40 | -2 | -0.4 |
| Bias Audit Transparency | 18% | 45 | 20 | +25 | +4.5 |
| FRIA Support | 15% | 25 | 27 | -2 | -0.3 |
| Data Governance Disclosure | 15% | 50 | 47 | +3 | +0.4 |
| Human Oversight Design | 12% | 55 | 61 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 38 | 35 | +3 | +0.4 |
| Customer Documentation | 8% | 62 | 56 | +6 | +0.5 |
| Total | 100% | 43 (F) | 39 (F) | +4 | +4.4 |
§ 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 | 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% | 2 | 1 | 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% | 15 | 5 | Sources on the vendor's own domain | 28 | 6 | Sources 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; 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 CodeSignal, across 1 distinct source domain, and 34 for Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- CodeSignal last reviewed
- June 7, 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