§ The result
Plum leads Sova Assessment by 6 points.
Plum scores 54 and Sova Assessment 48 under rubric v1.0 — a 6-point gap inside the Assessment cohort. Plum leads 4 of the 7 criteria, including Bias Audit Transparency, while Sova Assessment leads 3, including FRIA Support. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Plum 83, Sova Assessment 38 — and at an 18% weight it carries 89% of the weighted advantage Plum holds across the 4 criteria on that side of the table.
Vendor profile
Plum
Plum is a pre-employment talent assessment platform that uses a Five-Factor (Big Five) psychometric Discovery Survey and a Talent Match model to score and rank candidates on behavioral "durable skills" for role fit, hiring, and development.
Vendor profile
Sova Assessment
Sova Assessment is a UK-based enterprise talent assessment platform combining personality questionnaires, cognitive and ability tests, situational judgement, video interviews, virtual assessment centres and AI-led role simulations into a single occupational-psychology-validated candidate scoring workflow.
§ The record
Plum and Sova Assessment are both filed under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Plum | Sova Assessment |
|---|---|---|
| Price tier | Mid | High |
| Headquarters | CA | GB |
| Founded | 2012 | 2015 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 69% of the movement so far
Bias Audit Transparency
Plum 83 · Sova Assessment 38
8.1 weighted points to Plum
15% weight · 84% of the movement so far
FRIA Support
Plum 28 · Sova Assessment 40
1.8 weighted points to Sova Assessment
20% weight · 90% of the movement so far
Article 11 Technical Documentation
Plum 58 · Sova Assessment 55
0.6 weighted points to Plum
12% weight · 94% of the movement so far
Post-Market Monitoring
Plum 36 · Sova Assessment 40
0.5 weighted points to Sova Assessment
12% weight · 97% of the movement so far
Human Oversight Design
Plum 52 · Sova Assessment 55
0.4 weighted points to Sova Assessment
15% weight · 99% of the movement so far
Data Governance Disclosure
Plum 54 · Sova Assessment 52
0.3 weighted points to Plum
8% weight · 100% of the movement so far
Customer Documentation
Plum 63 · Sova Assessment 62
0.1 weighted points to Plum
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +6.4 — the difference between the two totals before either is rounded. Shares are of 11.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +6 beside that +6.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Plum minus Sova Assessment.
| Category | Weight | Plum | Sova Assessment | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 58 | 55 | +3 | +0.6 |
| Bias Audit Transparency | 18% | 83 | 38 | +45 | +8.1 |
| FRIA Support | 15% | 28 | 40 | -12 | -1.8 |
| Data Governance Disclosure | 15% | 54 | 52 | +2 | +0.3 |
| Human Oversight Design | 12% | 52 | 55 | -3 | -0.4 |
| Post-Market Monitoring | 12% | 36 | 40 | -4 | -0.5 |
| Customer Documentation | 8% | 63 | 62 | +1 | +0.1 |
| Total | 100% | 54 (F) | 48 (F) | +6 | +6.4 |
§ 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 | Plum | Sova Assessment | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 0 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 0 | Audit reportSources on the vendor's own domain | 4 | 2 | Sources on the vendor's own domain |
| FRIA Support | 15% | 0 | 1 | — | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 2 | 1 | Audit reportSources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 6 | 1 | Sources on the vendor's own domainSources on a separate domain |
| All criteria | 100% | 15 | 4 | Audit reportSources on the vendor's own domain | 28 | 8 | Audit reportSources on the vendor's own domainSources on a separate domain |
Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 documented absences; Sova Assessment has 34 evidence rows across 7 of 7 criteria — 28 with a source URL, 8 documented absences; some documentation or audit rows for Sova Assessment sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 53 evidence rows on file for these two vendors: 19 for Plum, across 1 distinct source domain, and 34 for Sova Assessment, across 3 distinct source domains.
- Rubric
- v1.0
- Plum last reviewed
- June 7, 2026 · HireAIScore editorial team
- Sova Assessment last reviewed
- August 2, 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