§ The result
Gem leads Thomas International on 6 of the 7 criteria.
Gem scores 55 and Thomas International 48 under rubric v1.0, a 7-point gap across the Sourcing and Assessment cohorts. Gem leads 6 of the 7 criteria and the remaining criterion is level, so Thomas International is ahead on none of them; the closest of the 6 Gem leads is FRIA Support, Gem 35 to Thomas International 33. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — Gem 66, Thomas International 43 — and at an 18% weight it carries 56% of the weighted advantage Gem holds across the 6 criteria on that side of the table.
Vendor profile
Gem
Gem is an AI-first recruiting platform combining a talent CRM, AI sourcing and outreach automation, candidate engagement, and a newer applicant tracking system with AI-powered application review and ranking.
Vendor profile
Thomas International
Thomas International provides psychometric and aptitude assessments (behaviour/DISC, cognitive ability, personality and emotional intelligence) with an AI coaching layer, used for hiring, candidate selection and employee development.
§ The record
Gem is filed under Candidate sourcing AI, Thomas International 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 Thomas International is in scope of Mobley v. Workday.
| Record | Gem | Thomas International |
|---|---|---|
| Price tier | High | Mid |
| Headquarters | US | GB |
| Founded | 2017 | 1981 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 56% of the movement so far
Bias Audit Transparency
Gem 66 · Thomas International 43
4.1 weighted points to Gem
12% weight · 72% of the movement so far
Human Oversight Design
Gem 61 · Thomas International 51
1.2 weighted points to Gem
12% weight · 83% of the movement so far
Post-Market Monitoring
Gem 47 · Thomas International 40
0.8 weighted points to Gem
20% weight · 94% of the movement so far
Article 11 Technical Documentation
Gem 58 · Thomas International 54
0.8 weighted points to Gem
15% weight · 98% of the movement so far
FRIA Support
Gem 35 · Thomas International 33
0.3 weighted points to Gem
8% weight · 100% of the movement so far
Customer Documentation
Gem 62 · Thomas International 60
0.2 weighted points to Gem
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +7.4 — the difference between the two totals before either is rounded. Shares are of 7.4 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +7 beside that +7.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Gem minus Thomas International.
| Category | Weight | Gem | Thomas International | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 58 | 54 | +4 | +0.8 |
| Bias Audit Transparency | 18% | 66 | 43 | +23 | +4.1 |
| FRIA Support | 15% | 35 | 33 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 57 | 57 | - | - |
| Human Oversight Design | 12% | 61 | 51 | +10 | +1.2 |
| Post-Market Monitoring | 12% | 47 | 40 | +7 | +0.8 |
| Customer Documentation | 8% | 62 | 60 | +2 | +0.2 |
| Total | 100% | 55 (F) | 48 (F) | +7 | +7.4 |
§ 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 | Gem | Thomas International | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 3 | 0 | Audit reportSources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 19 | 2 | Audit reportSources on the vendor's own domainSources on a separate domain | 11 | 6 | Sources on the vendor's own domain |
Gem has 21 evidence rows across 7 of 7 criteria — 19 with a source URL, 2 documented absences; Thomas International has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; some documentation or audit rows for Gem sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 38 evidence rows on file for these two vendors: 21 for Gem, across 2 distinct source domains, and 17 for Thomas International, across 1 distinct source domain.
- Rubric
- v1.0
- Gem last reviewed
- June 7, 2026 · HireAIScore editorial team
- Thomas International last reviewed
- July 17, 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