§ The result
Eightfold AI leads Arena Analytics on all 7 criteria.
Rubric v1.0 puts 32 points between Eightfold AI (Sourcing) and Arena Analytics (Screening): 64 (D) for Eightfold AI, 32 (F) for Arena Analytics. Eightfold AI leads every one of the 7 criteria and 6 of them by 20 raw points or more, Bias Audit Transparency among them; Arena Analytics leads none. The advantage Eightfold AI holds is spread out: Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing (Arena Analytics 25, Eightfold AI 85, 18% weight), yet it supplies only 33% of the weighted points Eightfold AI gains across the 7 criteria it leads.
Vendor profile
Arena Analytics
Arena scores job applicants, mainly for healthcare and senior-living employers, on how likely they are to show up and stay in a specific role at a specific location, reroutes and sources candidates it rates likely to be retained, and applies the same outcome models to employee flight risk and internal mobility.
Vendor profile
Eightfold AI
Talent intelligence platform offering candidate matching, internal mobility, and career-site personalization on top of a deep-learning talent graph.
§ The record
Arena Analytics is filed under Screening AI, Eightfold AI under Candidate sourcing AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144 and Colorado AI Act. Only Arena Analytics is in scope of Illinois HB 3773 and Mobley v. Workday.
| Record | Arena Analytics | Eightfold AI |
|---|---|---|
| Price tier | Enterprise | Enterprise |
| Headquarters | US | US |
| Founded | 2015 | 2016 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 33% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · Eightfold AI 85
10.8 weighted points to Eightfold AI
20% weight · 61% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · Eightfold AI 75
9.0 weighted points to Eightfold AI
15% weight · 70% of the movement so far
FRIA Support
Arena Analytics 25 · Eightfold AI 45
3.0 weighted points to Eightfold AI
15% weight · 78% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · Eightfold AI 60
2.7 weighted points to Eightfold AI
12% weight · 86% of the movement so far
Human Oversight Design
Arena Analytics 38 · Eightfold AI 60
2.6 weighted points to Eightfold AI
12% weight · 95% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · Eightfold AI 50
2.6 weighted points to Eightfold AI
8% weight · 100% of the movement so far
Customer Documentation
Arena Analytics 38 · Eightfold AI 60
1.8 weighted points to Eightfold AI
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -32.5 — the difference between the two totals before either is rounded. Shares are of 32.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -32 beside that -32.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus Eightfold AI.
| Category | Weight | Arena Analytics | Eightfold AI | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 75 | -45 | -9.0 |
| Bias Audit Transparency | 18% | 25 | 85 | -60 | -10.8 |
| FRIA Support | 15% | 25 | 45 | -20 | -3.0 |
| Data Governance Disclosure | 15% | 42 | 60 | -18 | -2.7 |
| Human Oversight Design | 12% | 38 | 60 | -22 | -2.6 |
| Post-Market Monitoring | 12% | 28 | 50 | -22 | -2.6 |
| Customer Documentation | 8% | 38 | 60 | -22 | -1.8 |
| Total | 100% | 32 (F) | 64 (D) | -32 | -32.5 |
§ 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 | Arena Analytics | Eightfold AI | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 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% | 6 | 1 | Sources on the vendor's own domain | 1 | 0 | — |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 1 | 0 | — |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 13 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain |
Arena Analytics has 30 evidence rows across 7 of 7 criteria — 23 with a source URL, 7 documented absences; Eightfold AI has 15 evidence rows across 7 of 7 criteria — 13 with a source URL, 2 documented absences; some documentation or audit rows for Arena Analytics and Eightfold AI sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 45 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 15 for Eightfold AI, across 2 distinct source domains.
- Rubric
- v1.0
- Arena Analytics last reviewed
- September 25, 2026 · HireAIScore editorial team
- Eightfold AI last reviewed
- May 21, 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