§ The result
Plum leads Pin by 14 points.
Plum sits 14 points above Pin under rubric v1.0 — 54 against 40 — with Plum filed under Assessment and Pin under Sourcing. Plum leads 5 of the 7 criteria, including Bias Audit Transparency, while Pin leads 2, including Post-Market Monitoring. One criterion, Bias Audit Transparency, is both the widest raw gap (Pin 35, Plum 83) and the heaviest weighted swing, and at 18% weight it makes up 55% of the weighted advantage Plum holds across the 5 criteria it leads.
Vendor profile
Pin
Pin is an AI recruiting agent that searches a database of 850M+ candidate profiles, scores and ranks candidates for fit, can automatically screen out non-matches (each with a one-line reason), and runs outreach and interview scheduling.
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
Pin is filed under Candidate sourcing AI, Plum under Assessment 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. Only Plum is in scope of Mobley v. Workday.
| Record | Pin | Plum |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | US | CA |
| Founded | 2024 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 51% of the movement so far
Bias Audit Transparency
Pin 35 · Plum 83
8.6 weighted points to Plum
20% weight · 83% of the movement so far
Article 11 Technical Documentation
Pin 30 · Plum 58
5.6 weighted points to Plum
12% weight · 90% of the movement so far
Post-Market Monitoring
Pin 45 · Plum 36
1.1 weighted points to Pin
8% weight · 93% of the movement so far
Customer Documentation
Pin 55 · Plum 63
0.6 weighted points to Plum
15% weight · 97% of the movement so far
Data Governance Disclosure
Pin 50 · Plum 54
0.6 weighted points to Plum
15% weight · 99% of the movement so far
FRIA Support
Pin 30 · Plum 28
0.3 weighted points to Pin
12% weight · 100% of the movement so far
Human Oversight Design
Pin 50 · Plum 52
0.2 weighted points to Plum
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -14.3 — the difference between the two totals before either is rounded. Shares are of 17.1 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 -14.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Pin minus Plum.
| Category | Weight | Pin | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 58 | -28 | -5.6 |
| Bias Audit Transparency | 18% | 35 | 83 | -48 | -8.6 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 50 | 54 | -4 | -0.6 |
| Human Oversight Design | 12% | 50 | 52 | -2 | -0.2 |
| Post-Market Monitoring | 12% | 45 | 36 | +9 | +1.1 |
| Customer Documentation | 8% | 55 | 63 | -8 | -0.6 |
| Total | 100% | 40 (F) | 54 (F) | -14 | -14.3 |
§ 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 | Pin | Plum | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 1 | Audit reportSources on the vendor's own domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 7 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 2 | 1 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 5 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 5 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 32 | 5 | Audit reportSources on the vendor's own domain | 15 | 4 | Audit reportSources on the vendor's own domain |
Pin has 37 evidence rows across 7 of 7 criteria — 32 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.
Provenance
The scores above are documented by 56 evidence rows on file for these two vendors: 37 for Pin, across 1 distinct source domain, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Pin 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