§ The result
Plum leads Pillar by 14 points.
Plum sits 14 points above Pillar under rubric v1.0 — 54 against 40 — with Plum filed under Assessment and Pillar under Screening. Plum leads 6 of the 7 criteria, including Bias Audit Transparency, while Pillar leads 1, including FRIA Support. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Pillar 38, Plum 83 — and at an 18% weight it carries 56% of the weighted advantage Plum holds across the 6 criteria on that side of the table.
Vendor profile
Pillar
Pillar (now "AI Interview Companion by Employ") is an interview intelligence platform that records and transcribes job interviews, generates AI interview guides and highlight clips, and surfaces candidate insights and interviewer-coaching recommendations.
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
Pillar is filed under Screening AI, Plum under Assessment AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Pillar | Plum |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | US | CA |
| Founded | 2019 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 55% of the movement so far
Bias Audit Transparency
Pillar 38 · Plum 83
8.1 weighted points to Plum
20% weight · 76% of the movement so far
Article 11 Technical Documentation
Pillar 42 · Plum 58
3.2 weighted points to Plum
15% weight · 85% of the movement so far
Data Governance Disclosure
Pillar 45 · Plum 54
1.3 weighted points to Plum
8% weight · 92% of the movement so far
Customer Documentation
Pillar 50 · Plum 63
1.0 weighted points to Plum
12% weight · 96% of the movement so far
Human Oversight Design
Pillar 48 · Plum 52
0.5 weighted points to Plum
12% weight · 98% of the movement so far
Post-Market Monitoring
Pillar 33 · Plum 36
0.4 weighted points to Plum
15% weight · 100% of the movement so far
FRIA Support
Pillar 30 · Plum 28
0.3 weighted points to Pillar
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -14.2 — the difference between the two totals before either is rounded. Shares are of 14.8 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -14 beside that -14.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Pillar minus Plum.
| Category | Weight | Pillar | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 42 | 58 | -16 | -3.2 |
| Bias Audit Transparency | 18% | 38 | 83 | -45 | -8.1 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 45 | 54 | -9 | -1.3 |
| Human Oversight Design | 12% | 48 | 52 | -4 | -0.5 |
| Post-Market Monitoring | 12% | 33 | 36 | -3 | -0.4 |
| Customer Documentation | 8% | 50 | 63 | -13 | -1.0 |
| Total | 100% | 40 (F) | 54 (F) | -14 | -14.2 |
§ 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 | Pillar | 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 | Audit reportSources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 12 | 7 | Audit reportSources on the vendor's own domain | 15 | 4 | Audit reportSources on the vendor's own domain |
Pillar has 19 evidence rows across 7 of 7 criteria — 12 with a source URL, 7 documented absences; Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 documented absences.
Provenance
The scores above are documented by 38 evidence rows on file for these two vendors: 19 for Pillar, across 1 distinct source domain, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Pillar last reviewed
- June 7, 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