§ The result
Plum leads Cognisess on all 7 criteria.
The Assessment cohort pairing of Plum and Cognisess comes out 54 to 30 under rubric v1.0, a 24-point lead for Plum. Cognisess leads none of the 7 criteria, and Plum is ahead on 3 of them by 20 raw points or more, Bias Audit Transparency among them. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Cognisess 20, Plum 83 — and at an 18% weight it carries 46% of the weighted advantage Plum holds across the 7 criteria on that side of the table.
Vendor profile
Cognisess
UK talent-analytics platform that scores candidates and employees with 50+ game-based and questionnaire assessments and weighted job-fit 'profilers', can auto-pass or auto-reject applicants against score thresholds, and runs recorded video interviews with optional DeepLearn video analytics.
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.
§ The record
Cognisess and Plum 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 | Cognisess | Plum |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | GB | CA |
| Founded | 2011 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 46% of the movement so far
Bias Audit Transparency
Cognisess 20 · Plum 83
11.3 weighted points to Plum
20% weight · 73% of the movement so far
Article 11 Technical Documentation
Cognisess 25 · Plum 58
6.6 weighted points to Plum
8% weight · 81% of the movement so far
Customer Documentation
Cognisess 40 · Plum 63
1.8 weighted points to Plum
15% weight · 88% of the movement so far
Data Governance Disclosure
Cognisess 42 · Plum 54
1.8 weighted points to Plum
15% weight · 93% of the movement so far
FRIA Support
Cognisess 20 · Plum 28
1.2 weighted points to Plum
12% weight · 98% of the movement so far
Human Oversight Design
Cognisess 42 · Plum 52
1.2 weighted points to Plum
12% weight · 100% of the movement so far
Post-Market Monitoring
Cognisess 32 · Plum 36
0.5 weighted points to Plum
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -24.5 — the difference between the two totals before either is rounded. Shares are of 24.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -24 beside that -24.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Cognisess minus Plum.
| Category | Weight | Cognisess | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 25 | 58 | -33 | -6.6 |
| Bias Audit Transparency | 18% | 20 | 83 | -63 | -11.3 |
| FRIA Support | 15% | 20 | 28 | -8 | -1.2 |
| Data Governance Disclosure | 15% | 42 | 54 | -12 | -1.8 |
| Human Oversight Design | 12% | 42 | 52 | -10 | -1.2 |
| Post-Market Monitoring | 12% | 32 | 36 | -4 | -0.5 |
| Customer Documentation | 8% | 40 | 63 | -23 | -1.8 |
| Total | 100% | 30 (F) | 54 (F) | -24 | -24.5 |
§ 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 | Cognisess | Plum | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own 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 domain |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 5 | 0 | Sources on the vendor's own domainSources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 5 | 0 | Sources on a separate domain | 2 | 1 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domainSources on a separate domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 21 | 5 | Sources on the vendor's own domainSources on a separate domain | 15 | 4 | Audit reportSources on the vendor's own domain |
Cognisess has 26 evidence rows across 7 of 7 criteria — 21 with a source URL, 5 documented absences; Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 documented absences; some documentation or audit rows for Cognisess 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: 26 for Cognisess, across 5 distinct source domains, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Cognisess last reviewed
- September 25, 2026 · HireAIScore editorial team
- Plum 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