Crebral|Legal
The Law Firm OS

Legal research you can cite in court.

Multi-agent consensus verification. Every citation deterministically checked against CourtListener's 10M+ database. Every holding independently cross-examined.

6AI Providers
10M+Cases Indexed
100%Citation Verifiability
<6%Hallucination

The Truth About Legal AI

Single-model legal AI hallucinates up to 33% of the time.

Stanford RegLab (Magesh et al., 2025) tested every major legal AI product. Westlaw's AI-Assisted Research hallucinated 33% of citations. Lexis+ AI: 17%. These are not fringe products—they serve the majority of practicing US attorneys.

Hallucination Rate (Stanford 2025)
Westlaw AI-Assisted Research33% Error
Lexis+ AI17% Error
Crebral Legal (Multi-Agent)6% Error

The 5 Categories of Error

Fabricated case citations that do not exist in any reporter
Wrong holdings misrepresenting what a court actually decided
Jurisdictional confusion applying irrelevant precedent
Temporal errors citing overruled authority as good law
Sycophantic agreement validating false legal premises

The Root Cause ArchitectureSingle-model RAG places the burden of truth on one system. One model retrieves. One model generates. One model hallucinates. The errors are systematic, not random.

The Architecture Standard

Comparing Crebral against incumbent legal tech platforms reveals structural advantages that single-model platforms cannot match.

Multi-model consensus

Crebral Legal
6 providers
Westlaw
Single model
Lexis+ AI
Single model
Harvey
Single model

Citation verification

Crebral Legal
Deterministic DB
Westlaw
Proprietary
Lexis+ AI
Proprietary
Harvey
None

Holding cross-check

Crebral Legal
2 independent LLMs
Westlaw
None
Lexis+ AI
None
Harvey
None

Adversarial review

Crebral Legal
Automated
Westlaw
None
Lexis+ AI
None
Harvey
None

Audit trail

Crebral Legal
Full transparency
Westlaw
Black box
Lexis+ AI
Black box
Harvey
Black box

Data source

Crebral Legal
Open (CourtListener)
Westlaw
Proprietary lock-in
Lexis+ AI
Proprietary lock-in
Harvey
N/A

Hallucination rate

Crebral Legal
<6% (POC)
Westlaw
~33% (Stanford)
Lexis+ AI
~17% (Stanford)
Harvey
Unknown

Deterministic Verification Architecture

The 7-Stage Pipeline

Every query passes through seven independent verification stages. No stage trusts the previous one's output. This is the only way to eliminate hallucination.

001

Case Search

CourtListener's database of 10M+ federal and state court opinions, spanning 471 jurisdictions.

002

Independent Research

6 AI providers research your question in parallel. They cannot see each other's work.

003

Citation Verification

Every citation is checked against the database. Deterministic lookup, not AI opinion.

004

Holding Cross-Check

Two independent LLMs from different families extract and compare the actual holding.

005

Good Law Analysis

Citation graph traversal flags overruled, reversed, or negatively treated authority.

006

Consensus Computation

Cross-agent agreement scored. Citations from 2+ agents classified as agreed.

007

Adversarial Review

A devil's advocate AI challenges the consensus. What would opposing counsel cite?

The Engine of Consensus

When 4+ agents from different LLM families agree on a legal conclusion, the possibility of correlated hallucination plummets. Independent analysis creates unshakeable confidence.

AN
Anthropic
Claude
DE
DeepSeek
DeepSeek
GO
Google
Gemini
XA
xAI
Grok
OP
OpenAI
GPT
IN
Inception
Mercury

Platform Utilities

Built for precision drafting.

Citation-heavy motions are our sweet spot. Where precedent dictates outcome, Crebral provides the verification.

Motion for Summary Judgment

High Volume

The most research-intensive pleading in litigation. Get verified citations with consensus scoring in 60 seconds.

Motion to Dismiss

Core Use

Challenge the legal basis with cross-verified authority from multiple AI providers.

Motion to Compel

Discovery

Back your discovery arguments with binding precedent, automatically shepardized.

Motion in Limine

Trial Prep

Exclude evidence with properly verified case law and good-law analysis.

Also Assisting Elements:
Answer & Affirmative DefensesLegal memoranda & research memosAppellate briefsOpposition papers

Absolute Data Sanctity

SOC 2 compliant. Data never used for model training. Full audit trail for regulatory compliance.

Row Level Security

Every query is DB-scoped to your organization. Complete infrastructure isolation.

End-to-End Encryption

Research flows and results encrypted in transit and at rest. Your work product is yours alone.

Immutable Audit Trail

Every citation checked, every holding verified is logged. Complete compliance trail.

Start researching
with confidence.

3 free queries. No credit card required. Experience the power of the complete 7-stage verification pipeline today.

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