§ The result
Ribbon leads micro1 by 7 points.
Ribbon scores 43 and micro1 36 under rubric v1.0 — a 7-point gap inside the Screening cohort. Ribbon leads 6 of the 7 criteria, including Bias Audit Transparency, while micro1 leads 1, including Article 11 Technical Documentation. The advantage Ribbon holds is spread out: Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing (micro1 20, Ribbon 38, 18% weight), yet it supplies only 36% of the weighted points Ribbon gains across the 6 criteria it leads.
Vendor profile
micro1
Zara, micro1's LLM-based AI interviewer, runs recorded, adaptive spoken interviews (with optional coding exercises and automated proctoring) and returns per-skill proficiency ratings, soft-skill ratings and a proctoring score; micro1 uses it to certify experts for its own AI-training talent network, and employers can use it through a client portal and API.
Vendor profile
Ribbon
Ribbon is an AI recruiter that runs voice and video screening interviews with applicants around the clock, scores each interview against default and custom rubrics, ranks candidates for recruiter review, and syncs the results to 60+ applicant tracking systems.
§ The record
micro1 and Ribbon 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, Illinois HB 3773, Colorado AI Act and Mobley v. Workday.
| Record | micro1 | Ribbon |
|---|---|---|
| Price tier | Mid | Low |
| Headquarters | US | CA |
| Founded | 2022 | 2020 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 31% of the movement so far
Bias Audit Transparency
micro1 20 · Ribbon 38
3.2 weighted points to Ribbon
15% weight · 46% of the movement so far
FRIA Support
micro1 22 · Ribbon 33
1.6 weighted points to Ribbon
20% weight · 61% of the movement so far
Article 11 Technical Documentation
micro1 50 · Ribbon 42
1.6 weighted points to micro1
12% weight · 75% of the movement so far
Post-Market Monitoring
micro1 25 · Ribbon 37
1.4 weighted points to Ribbon
8% weight · 85% of the movement so far
Customer Documentation
micro1 45 · Ribbon 58
1.0 weighted points to Ribbon
12% weight · 93% of the movement so far
Human Oversight Design
micro1 48 · Ribbon 55
0.8 weighted points to Ribbon
15% weight · 100% of the movement so far
Data Governance Disclosure
micro1 45 · Ribbon 50
0.8 weighted points to Ribbon
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -7.4 — the difference between the two totals before either is rounded. Shares are of 10.6 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 micro1 minus Ribbon.
| Category | Weight | micro1 | Ribbon | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 42 | +8 | +1.6 |
| Bias Audit Transparency | 18% | 20 | 38 | -18 | -3.2 |
| FRIA Support | 15% | 22 | 33 | -11 | -1.6 |
| Data Governance Disclosure | 15% | 45 | 50 | -5 | -0.8 |
| Human Oversight Design | 12% | 48 | 55 | -7 | -0.8 |
| Post-Market Monitoring | 12% | 25 | 37 | -12 | -1.4 |
| Customer Documentation | 8% | 45 | 58 | -13 | -1.0 |
| Total | 100% | 36 (F) | 43 (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 | micro1 | Ribbon | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 3 | 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 | 4 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 2 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 4 | 1 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 7 | 0 | Sources on the vendor's own domainSources on a separate domain | 6 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 2 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 5 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 25 | 8 | Sources on the vendor's own domainSources on a separate domain | 31 | 4 | Sources on the vendor's own domainSources on a separate domain |
micro1 has 33 evidence rows across 7 of 7 criteria — 25 with a source URL, 8 documented absences; Ribbon has 35 evidence rows across 7 of 7 criteria — 31 with a source URL, 4 documented absences; some documentation or audit rows for micro1 and Ribbon sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 68 evidence rows on file for these two vendors: 33 for micro1, across 3 distinct source domains, and 35 for Ribbon, across 2 distinct source domains.
- Rubric
- v1.0
- micro1 last reviewed
- September 25, 2026 · HireAIScore editorial team
- Ribbon 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