§ The result
Gem leads ADP on 6 of the 7 criteria.
Gem scores 55 and ADP 48 under rubric v1.0, a 7-point gap across the Sourcing and ATS-integrated cohorts. Gem leads 6 of the 7 criteria and the remaining criterion is level, so ADP is ahead on none of them; the closest of the 6 Gem leads is Post-Market Monitoring, ADP 45 to Gem 47. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — ADP 46, Gem 66 — and at an 18% weight it carries 52% of the weighted advantage Gem holds across the 6 criteria on that side of the table.
Vendor profile
ADP
ADP is an enterprise human capital management and payroll provider whose recruiting suite uses AI to parse, rank, and match job applicants via its Candidate Relevancy tool, ADP Assist generative-AI assistant/job-description generator, and skills intelligence.
Vendor profile
Gem
Gem is an AI-first recruiting platform combining a talent CRM, AI sourcing and outreach automation, candidate engagement, and a newer applicant tracking system with AI-powered application review and ranking.
§ The record
ADP is filed under ATS-integrated AI, Gem under Candidate sourcing AI. They also share 1 secondary category: Screening.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773.
| Record | ADP | Gem |
|---|---|---|
| Price tier | Enterprise | High |
| Headquarters | US | US |
| Founded | 1949 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 52% of the movement so far
Bias Audit Transparency
ADP 46 · Gem 66
3.6 weighted points to Gem
15% weight · 67% of the movement so far
FRIA Support
ADP 28 · Gem 35
1.1 weighted points to Gem
20% weight · 82% of the movement so far
Article 11 Technical Documentation
ADP 53 · Gem 58
1.0 weighted points to Gem
12% weight · 92% of the movement so far
Human Oversight Design
ADP 55 · Gem 61
0.7 weighted points to Gem
8% weight · 97% of the movement so far
Customer Documentation
ADP 58 · Gem 62
0.3 weighted points to Gem
12% weight · 100% of the movement so far
Post-Market Monitoring
ADP 45 · Gem 47
0.2 weighted points to Gem
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -6.9 — the difference between the two totals before either is rounded. Shares are of 6.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -7 beside that -6.9.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is ADP minus Gem.
| Category | Weight | ADP | Gem | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 53 | 58 | -5 | -1.0 |
| Bias Audit Transparency | 18% | 46 | 66 | -20 | -3.6 |
| FRIA Support | 15% | 28 | 35 | -7 | -1.1 |
| Data Governance Disclosure | 15% | 57 | 57 | - | - |
| Human Oversight Design | 12% | 55 | 61 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 45 | 47 | -2 | -0.2 |
| Customer Documentation | 8% | 58 | 62 | -4 | -0.3 |
| Total | 100% | 48 (F) | 55 (F) | -7 | -6.9 |
§ 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 | ADP | Gem | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate 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% | 4 | 0 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 3 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 18 | 5 | Sources on the vendor's own domain | 19 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain |
ADP has 23 evidence rows across 7 of 7 criteria — 18 with a source URL, 5 documented absences; Gem has 21 evidence rows across 7 of 7 criteria — 19 with a source URL, 2 documented absences; some documentation or audit rows for Gem sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 44 evidence rows on file for these two vendors: 23 for ADP, across 2 distinct source domains, and 21 for Gem, across 2 distinct source domains.
- Rubric
- v1.0
- ADP last reviewed
- July 17, 2026 · HireAIScore editorial team
- Gem 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