§ The result
3 points separate Testlify and Coderbyte.
Testlify holds a 3-point edge over Coderbyte under rubric v1.0, 45 to 42, with both scored in the Assessment cohort. The 7 criteria split 4 to 2 in favour of Testlify, with 1 level: Testlify is ahead on Bias Audit Transparency and Coderbyte on Human Oversight Design. One criterion, Bias Audit Transparency, is both the widest raw gap (Coderbyte 20, Testlify 30) and the heaviest weighted swing, and at 18% weight it makes up 47% of the weighted advantage Testlify holds across the 4 criteria it leads.
Vendor profile
Coderbyte
Coderbyte is a technical hiring platform offering coding assessments with automated and AI grading of challenges and take-home projects, live coding interviews, and AI screening that grades resumes against job-description criteria and runs agentic phone screens.
Vendor profile
Testlify
Testlify is a skills-assessment and AI-interviewing platform that ranks candidates on a scored leaderboard from pre-built or AI-generated tests, with an AI résumé screener, AI-scored video, voice and chat interviews, and AI-assisted proctoring.
§ The record
Coderbyte and Testlify are both filed under Assessment 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 | Coderbyte | Testlify |
|---|---|---|
| Price tier | Low | Low |
| Headquarters | US | US |
| Founded | 2012 | 2022 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 40% of the movement so far
Bias Audit Transparency
Coderbyte 20 · Testlify 30
1.8 weighted points to Testlify
20% weight · 75% of the movement so far
Article 11 Technical Documentation
Coderbyte 44 · Testlify 52
1.6 weighted points to Testlify
12% weight · 88% of the movement so far
Human Oversight Design
Coderbyte 60 · Testlify 55
0.6 weighted points to Coderbyte
12% weight · 93% of the movement so far
Post-Market Monitoring
Coderbyte 40 · Testlify 42
0.2 weighted points to Testlify
8% weight · 97% of the movement so far
Customer Documentation
Coderbyte 58 · Testlify 60
0.2 weighted points to Testlify
15% weight · 100% of the movement so far
Data Governance Disclosure
Coderbyte 56 · Testlify 55
0.1 weighted points to Coderbyte
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -3.0 — the difference between the two totals before either is rounded. Shares are of 4.5 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -3 beside that -3.0.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Coderbyte minus Testlify.
| Category | Weight | Coderbyte | Testlify | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 44 | 52 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 20 | 30 | -10 | -1.8 |
| FRIA Support | 15% | 33 | 33 | - | - |
| Data Governance Disclosure | 15% | 56 | 55 | +1 | +0.1 |
| Human Oversight Design | 12% | 60 | 55 | +5 | +0.6 |
| Post-Market Monitoring | 12% | 40 | 42 | -2 | -0.2 |
| Customer Documentation | 8% | 58 | 60 | -2 | -0.2 |
| Total | 100% | 42 (F) | 45 (F) | -3 | -3.0 |
§ 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 | Coderbyte | Testlify | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 5 | 0 | Audit reportSources on the vendor's own domain | 6 | 0 | Audit reportSources on the vendor's own domain |
| Human Oversight Design | 12% | 5 | 0 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Audit reportSources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 5 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 26 | 5 | Audit reportSources on the vendor's own domainSources on a separate domain | 31 | 5 | Audit reportSources on the vendor's own domain |
Coderbyte has 31 evidence rows across 7 of 7 criteria — 26 with a source URL, 5 documented absences; Testlify has 36 evidence rows across 7 of 7 criteria — 31 with a source URL, 5 documented absences; some documentation or audit rows for Coderbyte sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 67 evidence rows on file for these two vendors: 31 for Coderbyte, across 2 distinct source domains, and 36 for Testlify, across 1 distinct source domain.
- Rubric
- v1.0
- Coderbyte last reviewed
- September 25, 2026 · HireAIScore editorial team
- Testlify 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