§ The result
Plum takes the total, Fountain takes more of the criteria.
Plum sits 10 points above Fountain under rubric v1.0 — 54 against 44 — with Plum filed under Assessment and Fountain under Screening. Fountain leads more of the criteria than Plum — 4 to 3 — but Bias Audit Transparency, which Plum leads, carries 18% of the rubric, and the weighted sum still falls to Plum. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Fountain 30, Plum 83 — and at an 18% weight it carries 79% of the weighted advantage Plum holds across the 3 criteria on that side of the table.
Vendor profile
Fountain
AI-powered high-volume hiring platform that automates sourcing, applicant screening (including a voice-based AI Recruiter), interview scheduling, and onboarding for frontline workforces.
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
Fountain 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 and Illinois HB 3773. Only Plum is in scope of Mobley v. Workday.
| Record | Fountain | Plum |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | CA |
| Founded | 2014 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 70% of the movement so far
Bias Audit Transparency
Fountain 30 · Plum 83
9.5 weighted points to Plum
20% weight · 81% of the movement so far
Article 11 Technical Documentation
Fountain 50 · Plum 58
1.6 weighted points to Plum
8% weight · 88% of the movement so far
Customer Documentation
Fountain 52 · Plum 63
0.9 weighted points to Plum
12% weight · 93% of the movement so far
Human Oversight Design
Fountain 58 · Plum 52
0.7 weighted points to Fountain
12% weight · 97% of the movement so far
Post-Market Monitoring
Fountain 40 · Plum 36
0.5 weighted points to Fountain
15% weight · 99% of the movement so far
FRIA Support
Fountain 30 · Plum 28
0.3 weighted points to Fountain
15% weight · 100% of the movement so far
Data Governance Disclosure
Fountain 55 · Plum 54
0.1 weighted points to Fountain
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -10.4 — the difference between the two totals before either is rounded. Shares are of 13.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -10 beside that -10.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Fountain minus Plum.
| Category | Weight | Fountain | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 58 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 30 | 83 | -53 | -9.5 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 55 | 54 | +1 | +0.1 |
| Human Oversight Design | 12% | 58 | 52 | +6 | +0.7 |
| Post-Market Monitoring | 12% | 40 | 36 | +4 | +0.5 |
| Customer Documentation | 8% | 52 | 63 | -11 | -0.9 |
| Total | 100% | 44 (F) | 54 (F) | -10 | -10.4 |
§ 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 | Fountain | 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% | 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% | 3 | 0 | 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% | 2 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 14 | 6 | Sources on the vendor's own domain | 15 | 4 | Audit reportSources on the vendor's own domain |
Fountain has 20 evidence rows across 7 of 7 criteria — 14 with a source URL, 6 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 39 evidence rows on file for these two vendors: 20 for Fountain, across 2 distinct source domains, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- Fountain 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