§ The result
Jack & Jill takes the total, Brainner takes more of the criteria.
Jack & Jill holds a 3-point edge over Brainner under rubric v1.0, 49 to 46, across the Sourcing and Screening cohorts. Brainner leads more of the criteria, 4 against 3 for Jack & Jill, yet Jack & Jill takes Bias Audit Transparency, which carries 18% of the rubric, and the weighted sum with it. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Brainner 42, Jack & Jill 62 — and at an 18% weight it carries 73% of the weighted advantage Jack & Jill holds across the 3 criteria on that side of the table.
Vendor profile
Brainner
Brainner is an AI screening layer for applicant tracking systems that scores and ranks applicants against recruiter-weighted criteria with per-criterion justifications, and flags suspected fake applicants using third-party identity and fraud data.
Vendor profile
Jack & Jill
Jack & Jill is a London AI recruiting marketplace. Its free career agent, Jack, interviews and profiles candidates, and its employer-side AI recruiter, Jill, turns a role brief into a scoring rubric, ranks candidates from Jack's network (and optionally public profiles) with a percentage match, and arranges introductions only when both sides agree.
§ The record
Brainner is filed under Screening AI, Jack & Jill under Candidate sourcing 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.
| Record | Brainner | Jack & Jill |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | US | GB |
| Founded | 2023 | 2025 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 47% of the movement so far
Bias Audit Transparency
Brainner 42 · Jack & Jill 62
3.6 weighted points to Jack & Jill
20% weight · 67% of the movement so far
Article 11 Technical Documentation
Brainner 52 · Jack & Jill 44
1.6 weighted points to Brainner
12% weight · 80% of the movement so far
Human Oversight Design
Brainner 50 · Jack & Jill 58
1.0 weighted points to Jack & Jill
15% weight · 89% of the movement so far
Data Governance Disclosure
Brainner 53 · Jack & Jill 48
0.8 weighted points to Brainner
12% weight · 94% of the movement so far
Post-Market Monitoring
Brainner 45 · Jack & Jill 48
0.4 weighted points to Jack & Jill
15% weight · 98% of the movement so far
FRIA Support
Brainner 30 · Jack & Jill 28
0.3 weighted points to Brainner
8% weight · 100% of the movement so far
Customer Documentation
Brainner 58 · Jack & Jill 56
0.2 weighted points to Brainner
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -2.1 — the difference between the two totals before either is rounded. Shares are of 7.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -3 beside that -2.1.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Brainner minus Jack & Jill.
| Category | Weight | Brainner | Jack & Jill | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 52 | 44 | +8 | +1.6 |
| Bias Audit Transparency | 18% | 42 | 62 | -20 | -3.6 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 53 | 48 | +5 | +0.8 |
| Human Oversight Design | 12% | 50 | 58 | -8 | -1.0 |
| Post-Market Monitoring | 12% | 45 | 48 | -3 | -0.4 |
| Customer Documentation | 8% | 58 | 56 | +2 | +0.2 |
| Total | 100% | 46 (F) | 49 (F) | -3 | -2.1 |
§ 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 | Brainner | Jack & Jill | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 6 | 0 | Sources on the vendor's own domainSources on a separate domain | 6 | 0 | Audit reportSources on a separate domain |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | Audit reportSources on a separate domain |
| Data Governance Disclosure | 15% | 6 | 0 | Sources on the vendor's own domain | 7 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 8 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Sources on the vendor's own domain | 3 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 33 | 4 | Sources on the vendor's own domainSources on a separate domain | 31 | 5 | Audit reportSources on the vendor's own domainSources on a separate domain |
Brainner has 37 evidence rows across 7 of 7 criteria — 33 with a source URL, 4 documented absences; Jack & Jill has 36 evidence rows across 7 of 7 criteria — 31 with a source URL, 5 documented absences; some documentation or audit rows for Brainner and Jack & Jill sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 73 evidence rows on file for these two vendors: 37 for Brainner, across 2 distinct source domains, and 36 for Jack & Jill, across 2 distinct source domains.
- Rubric
- v1.0
- Brainner last reviewed
- September 25, 2026 · HireAIScore editorial team
- Jack & Jill last reviewed
- September 25, 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