§ The result
Workstream leads Mercor on all 7 criteria.
Workstream finishes 16 points clear of Mercor inside the Screening cohort under rubric v1.0: 39 against 23. Of the 7 criteria Mercor wins none, and the narrowest lead Workstream holds is on FRIA Support, Mercor 20 to Workstream 27. Even Data Governance Disclosure, the widest raw gap and the heaviest weighted swing (Mercor 22, Workstream 47, 15% weight), is only 24% of the weighted advantage Workstream builds across the 7 criteria it leads.
Vendor profile
Mercor
Mercor is an AI talent platform that runs automated 20-minute AI video interviews and semantic resume/profile matching to vet, score, and place candidates and expert contractors, and offers an enterprise applicant-screening product that scores employers' applicant pools against role rubrics with pass/fail recommendations.
Vendor profile
Workstream
Workstream is a mobile-first HR, payroll and hiring platform for hourly, multi-location employers such as QSR franchisees. Its hiring suite pairs a text-to-apply applicant tracking system with VoiceAI phone screens and VideoAI asynchronous video interviews, which return transcripts, AI summaries, pass/fail results for each question and match scores.
§ The record
Mercor and Workstream are both filed under Screening AI. They also share 1 secondary category: Video interview.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Mercor | Workstream |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2023 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 24% of the movement so far
Data Governance Disclosure
Mercor 22 · Workstream 47
3.8 weighted points to Workstream
20% weight · 47% of the movement so far
Article 11 Technical Documentation
Mercor 22 · Workstream 40
3.6 weighted points to Workstream
12% weight · 62% of the movement so far
Human Oversight Design
Mercor 42 · Workstream 61
2.3 weighted points to Workstream
18% weight · 73% of the movement so far
Bias Audit Transparency
Mercor 10 · Workstream 20
1.8 weighted points to Workstream
12% weight · 85% of the movement so far
Post-Market Monitoring
Mercor 20 · Workstream 35
1.8 weighted points to Workstream
8% weight · 93% of the movement so far
Customer Documentation
Mercor 40 · Workstream 56
1.3 weighted points to Workstream
15% weight · 100% of the movement so far
FRIA Support
Mercor 20 · Workstream 27
1.1 weighted points to Workstream
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -15.6 — the difference between the two totals before either is rounded. Shares are of 15.6 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -16 beside that -15.6.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercor minus Workstream.
| Category | Weight | Mercor | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 22 | 40 | -18 | -3.6 |
| Bias Audit Transparency | 18% | 10 | 20 | -10 | -1.8 |
| FRIA Support | 15% | 20 | 27 | -7 | -1.1 |
| Data Governance Disclosure | 15% | 22 | 47 | -25 | -3.8 |
| Human Oversight Design | 12% | 42 | 61 | -19 | -2.3 |
| Post-Market Monitoring | 12% | 20 | 35 | -15 | -1.8 |
| Customer Documentation | 8% | 40 | 56 | -16 | -1.3 |
| Total | 100% | 23 (F) | 39 (F) | -16 | -15.6 |
§ 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 | Mercor | Workstream | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 1 | 1 | — | 5 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 2 | — | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 10 | 8 | Sources on the vendor's own domain | 28 | 6 | Sources on the vendor's own domainSources on a separate domain |
Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 documented absences; Workstream has 34 evidence rows across 7 of 7 criteria — 28 with a source URL, 6 documented absences; some documentation or audit rows for Workstream sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 50 evidence rows on file for these two vendors: 16 for Mercor, across 4 distinct source domains, and 34 for Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- Mercor last reviewed
- June 7, 2026 · HireAIScore editorial team
- Workstream 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