§ The result
Willo leads Mercor on all 7 criteria.
Willo finishes 18 points clear of Mercor under rubric v1.0 — 41 against 23 — across the Video interview and Screening cohorts. Willo leads every one of the 7 criteria and 3 of them by 20 raw points or more, Data Governance Disclosure among them; Mercor leads none. Data Governance Disclosure is the widest raw gap and the heaviest weighted swing at once (Mercor 22, Willo 53, 15% weight), but it accounts for only 26% of the weighted advantage Willo holds across the 7 criteria on that side of the table.
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
Willo
Willo is a browser-based asynchronous (one-way) video interview platform that lets employers collect recorded video, audio, multiple-choice and written candidate responses, then uses AI to transcribe, summarize, rank candidates against employer-defined "Blueprint" criteria, and flag scripted or AI-generated answers.
§ The record
Mercor is filed under Screening AI, Willo under Video interview AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Mercor | Willo |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | US | GB |
| Founded | 2023 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
15% weight · 26% of the movement so far
Data Governance Disclosure
Mercor 22 · Willo 53
4.6 weighted points to Willo
18% weight · 47% of the movement so far
Bias Audit Transparency
Mercor 10 · Willo 30
3.6 weighted points to Willo
20% weight · 65% of the movement so far
Article 11 Technical Documentation
Mercor 22 · Willo 38
3.2 weighted points to Willo
12% weight · 79% of the movement so far
Human Oversight Design
Mercor 42 · Willo 62
2.4 weighted points to Willo
12% weight · 89% of the movement so far
Post-Market Monitoring
Mercor 20 · Willo 36
1.9 weighted points to Willo
8% weight · 96% of the movement so far
Customer Documentation
Mercor 40 · Willo 54
1.1 weighted points to Willo
15% weight · 100% of the movement so far
FRIA Support
Mercor 20 · Willo 25
0.8 weighted points to Willo
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -17.6 — the difference between the two totals before either is rounded. Shares are of 17.6 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -18 beside that -17.6.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercor minus Willo.
| Category | Weight | Mercor | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 22 | 38 | -16 | -3.2 |
| Bias Audit Transparency | 18% | 10 | 30 | -20 | -3.6 |
| FRIA Support | 15% | 20 | 25 | -5 | -0.8 |
| Data Governance Disclosure | 15% | 22 | 53 | -31 | -4.6 |
| Human Oversight Design | 12% | 42 | 62 | -20 | -2.4 |
| Post-Market Monitoring | 12% | 20 | 36 | -16 | -1.9 |
| Customer Documentation | 8% | 40 | 54 | -14 | -1.1 |
| Total | 100% | 23 (F) | 41 (F) | -18 | -17.6 |
§ 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 | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 1 | 1 | — | 1 | 1 | — |
| FRIA Support | 15% | 1 | 2 | — | 0 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 1 | 1 | — | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 10 | 8 | Sources on the vendor's own domain | 9 | 5 | Sources on the vendor's own domain |
Mercor has 16 evidence rows across 7 of 7 criteria — 10 with a source URL, 8 documented absences; Willo has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences.
Provenance
The scores above are documented by 30 evidence rows on file for these two vendors: 16 for Mercor, across 4 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- Mercor last reviewed
- June 7, 2026 · HireAIScore editorial team
- Willo 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