§ The result
Plum leads Harri by 13 points.
Plum sits 13 points above Harri under rubric v1.0 — 54 against 41 — with Plum filed under Assessment and Harri under ATS-integrated. Plum leads 4 of the 7 criteria, including Bias Audit Transparency, while Harri leads 2, including FRIA Support, and 1 is level. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Harri 22, Plum 83 — and at an 18% weight it carries 68% of the weighted advantage Plum holds across the 4 criteria on that side of the table.
Vendor profile
Harri
Harri is a frontline workforce platform for hospitality, grocery and care employers whose pre-hire suite pairs a career portal and applicant tracking system with Carri, a conversational AI assistant that screens applicants and coordinates interviews, plus an agentic AI layer (Salli) for scheduling and labor-law compliance.
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
Harri is filed under ATS-integrated 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 | Harri | Plum |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | CA |
| Founded | 2012 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 58% of the movement so far
Bias Audit Transparency
Harri 22 · Plum 83
11.0 weighted points to Plum
20% weight · 82% of the movement so far
Article 11 Technical Documentation
Harri 35 · Plum 58
4.6 weighted points to Plum
15% weight · 95% of the movement so far
FRIA Support
Harri 44 · Plum 28
2.4 weighted points to Harri
12% weight · 97% of the movement so far
Post-Market Monitoring
Harri 40 · Plum 36
0.5 weighted points to Harri
15% weight · 99% of the movement so far
Data Governance Disclosure
Harri 52 · Plum 54
0.3 weighted points to Plum
8% weight · 100% of the movement so far
Customer Documentation
Harri 60 · Plum 63
0.2 weighted points to Plum
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -13.2 — the difference between the two totals before either is rounded. Shares are of 19.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -13 beside that -13.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Harri minus Plum.
| Category | Weight | Harri | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 35 | 58 | -23 | -4.6 |
| Bias Audit Transparency | 18% | 22 | 83 | -61 | -11.0 |
| FRIA Support | 15% | 44 | 28 | +16 | +2.4 |
| Data Governance Disclosure | 15% | 52 | 54 | -2 | -0.3 |
| Human Oversight Design | 12% | 52 | 52 | - | - |
| Post-Market Monitoring | 12% | 40 | 36 | +4 | +0.5 |
| Customer Documentation | 8% | 60 | 63 | -3 | -0.2 |
| Total | 100% | 41 (F) | 54 (F) | -13 | -13.2 |
§ 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 | Harri | 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 | 2 | Sources on the vendor's own domain | 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% | 4 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 1 | Sources on the vendor's own 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% | 4 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 19 | 8 | Sources on the vendor's own domain | 15 | 4 | Audit reportSources on the vendor's own domain |
Harri has 27 evidence rows across 7 of 7 criteria — 19 with a source URL, 8 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 46 evidence rows on file for these two vendors: 27 for Harri, across 1 distinct source domain, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Harri last reviewed
- August 2, 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