§ The result
1 point separates UKG and Ribbon.
UKG holds a 1-point edge over Ribbon under rubric v1.0, 44 to 43, across the ATS-integrated and Screening cohorts. UKG leads 4 of the 7 criteria, including Article 11 Technical Documentation, while Ribbon leads 3, including Bias Audit Transparency. Bias Audit Transparency is at once the widest raw gap and the heaviest weighted swing, and it belongs to Ribbon — Ribbon 38, UKG 30, on an 18% weight — which is 71% of the weighted advantage Ribbon holds across the 3 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
UKG
UKG is an enterprise HCM and workforce-management suite whose UKG Pro Recruiting applicant-tracking module, augmented by the embedded Bryte AI layer, drafts job descriptions and produces profile-match candidate scores to rank and shortlist applicants.
§ The record
Ribbon is filed under Screening AI, UKG under ATS-integrated AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Illinois HB 3773 and Colorado AI Act. Only Ribbon is in scope of Mobley v. Workday.
| Record | Ribbon | UKG |
|---|---|---|
| Price tier | Low | Enterprise |
| Headquarters | CA | US |
| Founded | 2020 | 2020 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 32% of the movement so far
Bias Audit Transparency
Ribbon 38 · UKG 30
1.4 weighted points to Ribbon
20% weight · 58% of the movement so far
Article 11 Technical Documentation
Ribbon 42 · UKG 48
1.2 weighted points to UKG
15% weight · 78% of the movement so far
Data Governance Disclosure
Ribbon 50 · UKG 56
0.9 weighted points to UKG
12% weight · 86% of the movement so far
Human Oversight Design
Ribbon 55 · UKG 52
0.4 weighted points to Ribbon
15% weight · 92% of the movement so far
FRIA Support
Ribbon 33 · UKG 35
0.3 weighted points to UKG
8% weight · 97% of the movement so far
Customer Documentation
Ribbon 58 · UKG 55
0.2 weighted points to Ribbon
12% weight · 100% of the movement so far
Post-Market Monitoring
Ribbon 37 · UKG 38
0.1 weighted points to UKG
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -0.5 — the difference between the two totals before either is rounded. Shares are of 4.6 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -1 beside that -0.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Ribbon minus UKG.
| Category | Weight | Ribbon | UKG | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 42 | 48 | -6 | -1.2 |
| Bias Audit Transparency | 18% | 38 | 30 | +8 | +1.4 |
| FRIA Support | 15% | 33 | 35 | -2 | -0.3 |
| Data Governance Disclosure | 15% | 50 | 56 | -6 | -0.9 |
| Human Oversight Design | 12% | 55 | 52 | +3 | +0.4 |
| Post-Market Monitoring | 12% | 37 | 38 | -1 | -0.1 |
| Customer Documentation | 8% | 58 | 55 | +3 | +0.2 |
| Total | 100% | 43 (F) | 44 (F) | -1 | -0.5 |
§ 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 | UKG | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 4 | 1 | Sources on the vendor's own domain | 0 | 2 | — |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 1 | 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 | 2 | 0 | Audit reportSources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 0 | 2 | — |
| Post-Market Monitoring | 12% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 5 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 31 | 4 | Sources on the vendor's own domainSources on a separate domain | 6 | 8 | Audit reportSources on the vendor's own domain |
Ribbon has 35 evidence rows across 7 of 7 criteria — 31 with a source URL, 4 documented absences; UKG has 14 evidence rows across 7 of 7 criteria — 6 with a source URL, 8 documented absences; some documentation or audit rows for Ribbon sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 49 evidence rows on file for these two vendors: 35 for Ribbon, across 2 distinct source domains, and 14 for UKG, across 2 distinct source domains.
- Rubric
- v1.0
- Ribbon last reviewed
- September 25, 2026 · HireAIScore editorial team
- UKG 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