§ The result
Bullhorn leads Workstream by 15 points.
Bullhorn finishes 15 points clear of Workstream under rubric v1.0 — 54 against 39 — across the ATS-integrated and Screening cohorts. Bullhorn leads 5 of the 7 criteria, including Bias Audit Transparency, while Workstream leads 1, including Human Oversight Design, and 1 is level. One criterion, Bias Audit Transparency, is both the widest raw gap (Bullhorn 58, Workstream 20) and the heaviest weighted swing, and at 18% weight it makes up 45% of the weighted advantage Bullhorn holds across the 5 criteria it leads.
Vendor profile
Bullhorn
Bullhorn is a cloud-based applicant tracking system and CRM for staffing and recruiting agencies, with AI features (Bullhorn Copilot/Amplify, automation, and Textkernel-powered search and match) that source, screen, and rank candidates against jobs.
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
Bullhorn is filed under ATS-integrated AI, Workstream under Screening AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Workstream is in scope of Mobley v. Workday.
| Record | Bullhorn | Workstream |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | US | US |
| Founded | 1999 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 45% of the movement so far
Bias Audit Transparency
Bullhorn 58 · Workstream 20
6.8 weighted points to Bullhorn
20% weight · 74% of the movement so far
Article 11 Technical Documentation
Bullhorn 62 · Workstream 40
4.4 weighted points to Bullhorn
15% weight · 86% of the movement so far
Data Governance Disclosure
Bullhorn 60 · Workstream 47
1.9 weighted points to Bullhorn
15% weight · 97% of the movement so far
FRIA Support
Bullhorn 38 · Workstream 27
1.6 weighted points to Bullhorn
8% weight · 99% of the movement so far
Customer Documentation
Bullhorn 60 · Workstream 56
0.3 weighted points to Bullhorn
12% weight · 100% of the movement so far
Human Oversight Design
Bullhorn 60 · Workstream 61
0.1 weighted points to Workstream
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +15.0 — the difference between the two totals before either is rounded. Shares are of 15.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +15 beside that +15.0.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Bullhorn minus Workstream.
| Category | Weight | Bullhorn | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 62 | 40 | +22 | +4.4 |
| Bias Audit Transparency | 18% | 58 | 20 | +38 | +6.8 |
| FRIA Support | 15% | 38 | 27 | +11 | +1.6 |
| Data Governance Disclosure | 15% | 60 | 47 | +13 | +1.9 |
| Human Oversight Design | 12% | 60 | 61 | -1 | -0.1 |
| Post-Market Monitoring | 12% | 35 | 35 | - | - |
| Customer Documentation | 8% | 60 | 56 | +4 | +0.3 |
| Total | 100% | 54 (F) | 39 (F) | +15 | +15.0 |
§ 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 | Bullhorn | 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% | 3 | 1 | Audit reportSources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | — | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 3 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 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 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 15 | 6 | Audit reportSources on the vendor's own domain | 28 | 6 | Sources on the vendor's own domainSources on a separate domain |
Bullhorn has 20 evidence rows across 7 of 7 criteria — 15 with a source URL, 6 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 Bullhorn, across 2 distinct source domains, and 34 for Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- Bullhorn 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