Legal

Legal documents searched with human-level Accuracy

ZeroEntropy delivers cutting-edge rerankers and embeddings built for law firms, LegalTech, and in-house counsel - fully integrated to power RAG and Al agents across legal workflows.

Use Cases
Legal ResearchSurface and compare clauses across thousands of agreements
Contract AnalysisSemantic search over case law and precedent databases
Contract SearchFind specific terms and provisions across your full corpus
AI AgentsFeed agents the right context for drafting, review, and summarization
Trusted by
The Problem

Generic Retrieval Breaks on Legal Text

Legal documents are long, dense, and full of domain-specific language. Off-the-shelf embeddings and keyword search miss critical context… and both your users and AI agents notice.

87.47%
NDCG@10

Accuracy on LegalBench (Top of Leaderboard).

280 ms
p99 latency

End-to-end latency (embed + rerank).

cheaper

Than any API-based models.

What Teams Are Saying

I am a practicing lawyer and I do vector database and MCP servers and I get amazing results — your models are amazing.

Attorney, Law Firm

Hits every success criterion, big quality lift, fast, and scales cleanly.

NLP Engineer, Top LegalTech

Consistently outperformed every alternative we tested — recall@10, recall@5, across datasets. It’s fast, stable, and a no-brainer for legal document pipelines.

Co-Founder and CTO, Legal AI Startup
Technology

Lawyer-Level Speed and Precision

ZeroEntropy's legal-tuned retrieval engine connects to your document store and delivers precise, cited answers instantly — surfacing the exact clause, precedent, or definition your team needs.

01

Legal Research

Surface and compare clauses across thousands of agreements

02

Contract Analysis

Semantic search over case law and precedent databases

03

Contract Search

Find specific terms and provisions across your full corpus

04

AI Agents

Feed agents the right context for drafting, review, and summarization

Ship Retrieval That Works

Integrate ZeroEntropy in minutes. Models only, or end-to-end retrieval. Production-ready.

AWSHugging FaceAzure
Partner Providers

Access all models through a single, latency-optimized API, or through our partner providers.

# Create an API Key at https://dashboard.zeroentropy.dev

from zeroentropy import ZeroEntropy

zclient = ZeroEntropy()

response = zclient.models.rerank(
    model="zerank-2",
    query="What is Retrieval Augmented Generation?",
    documents=[
        "RAG combines retrieval with generation...",
    ],
)

for doc in response.results:
    print(doc)
API
ZeroEntropy API

Start building in minutes with Python and TypeScript SDKs.

VPC
ZeroEntropy VPC

Deploy in your own cloud with dedicated infrastructure. Available on AWS Marketplace and Azure.

Enterprise
Enterprise and Model Licensing

Custom deployments, dedicated capacity, model licensing, model fine-tuning, and SLAs. Talk to us.

Enterprise-Ready

From security to scale, ZeroEntropy is built for the demands of production ready AI

Compliance portal
SOC2 Type II

SOC2 Type II

Audited controls for data security, availability, and confidentiality — verified annually.

HIPAA Compliant

HIPAA Compliant

BAA-ready infrastructure with encryption at rest and in transit for protected health data.

Security lock blueprint
GDPR Compliant

GDPR Compliant

Full data residency controls, right-to-deletion, and DPA agreements for EU customers.

CCPA Compliant

CCPA Compliant

Consumer data rights honored with full transparency on collection, use, and deletion.

ZeroEntropy
The best AI teams retrieve with ZeroEntropy
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