§ The result
Versant by Pearson leads Willo by 8 points.
Versant by Pearson scores 49 and Willo 41 under rubric v1.0, an 8-point gap across the Assessment and Video interview cohorts. The 7 criteria split 5 to 1 in favour of Versant by Pearson, with 1 level: Versant by Pearson is ahead on Article 11 Technical Documentation and Willo on Human Oversight Design. One criterion, Article 11 Technical Documentation, is both the widest raw gap (Versant by Pearson 63, Willo 38) and the heaviest weighted swing, and at 20% weight it makes up 54% of the weighted advantage Versant by Pearson holds across the 5 criteria it leads.
Vendor profile
Versant by Pearson
Versant by Pearson is a suite of AI-scored English proficiency tests (plus spoken Spanish, French, Arabic and Dutch) that automatically score candidates' spoken and written responses on Pearson's Global Scale of English within minutes, used by employers such as contact centres and BPOs to screen applicants and benchmark staff through the ScoreKeeper dashboard.
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
Versant by Pearson is filed under Assessment AI, Willo under Video interview AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Versant by Pearson | Willo |
|---|---|---|
| Price tier | Mid | Low |
| Headquarters | GB | GB |
| Founded | 1844 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 50% of the movement so far
Article 11 Technical Documentation
Versant by Pearson 63 · Willo 38
5.0 weighted points to Versant by Pearson
18% weight · 71% of the movement so far
Bias Audit Transparency
Versant by Pearson 42 · Willo 30
2.2 weighted points to Versant by Pearson
12% weight · 80% of the movement so far
Post-Market Monitoring
Versant by Pearson 43 · Willo 36
0.8 weighted points to Versant by Pearson
15% weight · 87% of the movement so far
FRIA Support
Versant by Pearson 30 · Willo 25
0.8 weighted points to Versant by Pearson
12% weight · 94% of the movement so far
Human Oversight Design
Versant by Pearson 56 · Willo 62
0.7 weighted points to Willo
8% weight · 100% of the movement so far
Customer Documentation
Versant by Pearson 61 · Willo 54
0.6 weighted points to Versant by Pearson
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +8.6 — the difference between the two totals before either is rounded. Shares are of 10.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +8 beside that +8.6.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Versant by Pearson minus Willo.
| Category | Weight | Versant by Pearson | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 63 | 38 | +25 | +5.0 |
| Bias Audit Transparency | 18% | 42 | 30 | +12 | +2.2 |
| FRIA Support | 15% | 30 | 25 | +5 | +0.8 |
| Data Governance Disclosure | 15% | 53 | 53 | - | - |
| Human Oversight Design | 12% | 56 | 62 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 43 | 36 | +7 | +0.8 |
| Customer Documentation | 8% | 61 | 54 | +7 | +0.6 |
| Total | 100% | 49 (F) | 41 (F) | +8 | +8.6 |
§ 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 | Versant by Pearson | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 3 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 5 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 23 | 6 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Versant by Pearson has 29 evidence rows across 7 of 7 criteria — 23 with a source URL, 6 documented absences; Willo has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Versant by Pearson sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 43 evidence rows on file for these two vendors: 29 for Versant by Pearson, across 2 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- Versant by Pearson last reviewed
- September 25, 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