§ The result
4 points separate Ribbon and Workstream.
Ribbon holds a 4-point edge over Workstream under rubric v1.0, 43 to 39, with both scored in the Screening cohort. The 7 criteria split 6 to 1 in favour of Ribbon: Ribbon is ahead on Bias Audit Transparency and Workstream on Human Oversight Design. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Ribbon 38, Workstream 20 — and at an 18% weight it carries 60% of the weighted advantage Ribbon holds across the 6 criteria on that side of the table.
Vendor profile
Ribbon
Ribbon is an AI recruiter that runs voice and video screening interviews with applicants around the clock, scores each interview against default and custom rubrics, ranks candidates for recruiter review, and syncs the results to 60+ applicant tracking systems.
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
Ribbon and Workstream are both filed under Screening AI. They also share 1 secondary category: Video interview.
Both are in scope of EU AI Act, NYC LL 144, Illinois HB 3773, Colorado AI Act and Mobley v. Workday.
| Record | Ribbon | Workstream |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | CA | US |
| Founded | 2020 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 53% of the movement so far
Bias Audit Transparency
Ribbon 38 · Workstream 20
3.2 weighted points to Ribbon
15% weight · 68% of the movement so far
FRIA Support
Ribbon 33 · Workstream 27
0.9 weighted points to Ribbon
12% weight · 80% of the movement so far
Human Oversight Design
Ribbon 55 · Workstream 61
0.7 weighted points to Workstream
15% weight · 87% of the movement so far
Data Governance Disclosure
Ribbon 50 · Workstream 47
0.4 weighted points to Ribbon
20% weight · 93% of the movement so far
Article 11 Technical Documentation
Ribbon 42 · Workstream 40
0.4 weighted points to Ribbon
12% weight · 97% of the movement so far
Post-Market Monitoring
Ribbon 37 · Workstream 35
0.2 weighted points to Ribbon
8% weight · 100% of the movement so far
Customer Documentation
Ribbon 58 · Workstream 56
0.2 weighted points to Ribbon
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +4.7 — the difference between the two totals before either is rounded. Shares are of 6.1 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 +4.7.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Ribbon minus Workstream.
| Category | Weight | Ribbon | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 42 | 40 | +2 | +0.4 |
| Bias Audit Transparency | 18% | 38 | 20 | +18 | +3.2 |
| FRIA Support | 15% | 33 | 27 | +6 | +0.9 |
| Data Governance Disclosure | 15% | 50 | 47 | +3 | +0.4 |
| Human Oversight Design | 12% | 55 | 61 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 37 | 35 | +2 | +0.2 |
| Customer Documentation | 8% | 58 | 56 | +2 | +0.2 |
| Total | 100% | 43 (F) | 39 (F) | +4 | +4.7 |
§ 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 | Ribbon | Workstream | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 4 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 6 | 0 | Sources on the vendor's own domainSources on a separate domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 5 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 31 | 4 | Sources on the vendor's own domainSources on a separate domain | 28 | 6 | Sources on the vendor's own domainSources on a separate domain |
Ribbon has 35 evidence rows across 7 of 7 criteria — 31 with a source URL, 4 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 Ribbon and Workstream sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 69 evidence rows on file for these two vendors: 35 for Ribbon, across 2 distinct source domains, and 34 for Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- Ribbon last reviewed
- September 25, 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