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ZeroEntropy zerank-2 Reranker

ZeroEntropy · Operations & Productivity

ContainersNo attestation published

Certification per Microsoft Marketplace.

Provenance reach2 of 12 layers traced

Evidence tier Source Confirmed · 8 captures on record

User ratingNot rated0 reviews on the listing
Runs onContainersContainer
ProvenanceUnknown22% of the provenance layers this product can disclose
Evidence riskHighSign in to see the basis for this band.

What the publisher says

As described on Microsoft Marketplace.

zerank-2 is the flagship SOTA reranker by ZeroEntropy, trained with a novel Elo-style pipeline that consistently outperforms every other reranker. By boosting both semantic and lexical search, it delivers the most accurate answers across legal, medical, technical, financial, and code domains.

ZeroEntropy delivers the fastest and most accurate reranker on the market. Our SOTA reranker models rescore and reorder results to surface the most relevant answers--reducing noise, improving accuracy, and cutting hallucinations in RAG and AI agents across verticals.

Show the rest of the publisher’s description (5 more lines)

Trained with a novel Elo-based pipeline, zerank-2 is an open-weight model, and consistently outperforms Cohere, Salesforce, and even LLM-as-a-reranker from Google and OpenAI--delivering higher accuracy at lower latency and cost.

Highlights:

  • Unmatched reranking accuracy across verticals: legal, manufacturing, financial, medical, STEM, conversational, and code search.
  • Proven performance edge - outperforms Cohere rerank-3.5, Salesforce LlamaRank, and LLM rerankers in benchmarks.
  • Enterprise-ready - fast API integration, Hugging Face availability of weights, transparent pricing at half the market cost.

Preview

3 images
ZeroEntropy zerank-2 Reranker preview 1ZeroEntropy zerank-2 Reranker preview 2ZeroEntropy zerank-2 Reranker preview 3

Agent build and provenance

See the full provenance

The layer-by-layer build, the evidence behind each claim, the risk basis and the cross-marketplace links are open to any account. Some rows are disclosed, some the source leaves Unknown; a free account shows you which.

Compliance

Government
  • FedRAMPConfirmedNot listed90%, registry-checkedNo FedRAMP Marketplace entry matched this vendor's domain, checked 2026-08-27registry recordas observed 2026-08-27

Confirmed means matched to a public authoritative registry. Claimed means the vendor or its listing states it, not yet cross-checked. A framework not shown was not found in any source we hold, which is not evidence against it. Not listed means a scoped registry check found no match for this vendor's domain: a No is a scoped registry check, not a compliance judgment. Confidence bands: 95% domain-verified, 90% registry-checked, 80% self-attested, 70% weak signal. Self-attested items marked “vendor's site” are gathered from the vendor's own website and are not verified by us.

Vendor

External enrichment

CompanyZeroEntropyAutomated

Sources

Marketplace listingmarketplace.microsoft.comSource
Privacy PolicyPrivacy PolicySource

Publisher resources

5 links
ZeroEntropy Websitewww.zeroentropy.devSource
ZeroEntropy Models Documentationdocs.zeroentropy.devSource
Introducing zerank-2: The Most Accurate Multilingual Instruction-Following Rerankerwww.zeroentropy.devSource
Fixing RAG Reranker Scores with zerank-2www.youtube.comSource
Improving RAG Accuracy with Chess Elo Scoreswww.youtube.comSource

Linked repositories

RepositoriesUnknownUnknown

Unknown means this listing does not publish a repository. It is not a statement that the code is closed, and a linked repository is not a claim that the publisher wrote it: the registry computes that relationship privately and does not publish it.

Pricing
Unknown
Not stated
Delivery
Container
Microsoft Marketplace
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