The result

Glider AI leads Mercer | Mettl by 10 points.

Glider AI sits 10 points above Mercer | Mettl under rubric v1.0, 52 against 42, with both filed under Assessment. The 7 criteria split 6 to 1 in favour of Glider AI: Glider AI is ahead on Bias Audit Transparency and Mercer | Mettl on Data Governance Disclosure. One criterion, Bias Audit Transparency, is both the widest raw gap (Glider AI 68, Mercer | Mettl 42) and the heaviest weighted swing, and at 18% weight it makes up 44% of the weighted advantage Glider AI holds across the 6 criteria it leads.

Criteria won

7 criteria

  • Glider AI6
  • Mercer | Mettl1
Widest raw gap
Bias Audit Transparency68 vs 42
Heaviest weighted swing
Bias Audit Transparency18% weight

The record

Categories, scope and company facts.

Glider AI and Mercer | Mettl are both filed under Assessment AI. They also share 2 secondary categories: Screening and Video interview.

RecordGlider AIMercer | Mettl
Price tierMidMid
HeadquartersUSIN
Founded20202010

What decides it

The criteria that move the gap, heaviest swing first.

  1. Bias Audit Transparency

    18% weight43% of the movement so far

    Glider AI68
    Mercer | Mettl42

    4.7 weighted points to Glider AI

  2. Article 11 Technical Documentation

    20% weight70% of the movement so far

    Glider AI52
    Mercer | Mettl38

    2.8 weighted points to Glider AI

  3. Human Oversight Design

    12% weight81% of the movement so far

    Glider AI55
    Mercer | Mettl45

    1.2 weighted points to Glider AI

  4. FRIA Support

    15% weight90% of the movement so far

    Glider AI35
    Mercer | Mettl28

    1.1 weighted points to Glider AI

  5. Customer Documentation

    8% weight96% of the movement so far

    Glider AI60
    Mercer | Mettl52

    0.6 weighted points to Glider AI

  6. Post-Market Monitoring

    12% weight99% of the movement so far

    Glider AI40
    Mercer | Mettl38

    0.2 weighted points to Glider AI

  7. Data Governance Disclosure

    15% weight100% of the movement so far

    Glider AI54
    Mercer | Mettl55

    0.1 weighted points to Mercer | Mettl

Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +10.5 — the difference between the two totals before either is rounded. Shares are of 10.8 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +10 beside that +10.5.

Category-by-category

Raw score per criterion, with weighted delta.

Δ is Glider AI minus Mercer | Mettl, coloured for whichever of the two it favours.

CategoryWeightGlider AIMercer | MettlΔ rawΔ weighted
Article 11 Technical Documentation20%5238+14+2.8
Bias Audit Transparency18%6842+26+4.7
FRIA Support15%3528+7+1.1
Data Governance Disclosure15%5455-1-0.1
Human Oversight Design12%5545+10+1.2
Post-Market Monitoring12%4038+2+0.2
Customer Documentation8%6052+8+0.6
Total100%52F42F+10+10.5

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.

CriterionWeightGlider AIMercer | Mettl
CitedAbsencesAudit / hostingCitedAbsencesAudit / hosting
Article 11 Technical Documentation20%31Sources on the vendor's own domainSources on a separate domain21Sources on the vendor's own domain
Bias Audit Transparency18%31Audit reportSources on a separate domain01—
FRIA Support15%21Audit reportSources on the vendor's own domainSources on a separate domain11—
Data Governance Disclosure15%61Sources on the vendor's own domainSources on a separate domain20Sources on the vendor's own domain
Human Oversight Design12%70Sources on the vendor's own domainSources on a separate domain20Sources on the vendor's own domain
Post-Market Monitoring12%21Audit reportSources on the vendor's own domainSources on a separate domain11Sources on the vendor's own domain
Customer Documentation8%41Sources on the vendor's own domainSources on a separate domain11Sources on the vendor's own domain
All criteria100%276Audit reportSources on the vendor's own domainSources on a separate domain95Sources on the vendor's own domain

Glider AI has 33 evidence rows across 7 of 7 criteria — 27 with a source URL, 6 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Glider AI sit on a domain separate from the vendor's own site.

Provenance

The scores above are documented by 47 evidence rows on file for these two vendors: 33 for Glider AI, across 4 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.

Rubric
v1.0
Glider AI last reviewed
September 25, 2026 · HireAIScore editorial team
Mercer | Mettl 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.

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