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LexVault AI

AI-Powered Legal Document Intelligence

Built by 1Labs.ai

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LexVault AI interface - Legal document intelligence platform showing matter workspace and Q&A interface

LexVault AI - Matter workspace with document upload and Q&A interface

Project Overview

Product

LexVault AI

AI-Powered Legal Document Intelligence

Target Users

Litigation Attorneys

Mid-market firms (50-250 attorneys)

Project Type

Legal Tech AI RAG System Document Intelligence MVP Platform

Timeline

MVP Phase

5 milestones

Status

Live

lexvault.1labs.app

Team

1Labs.ai

AI engineers, product, design

The Challenge

Litigation attorneys in mid-market law firms face constant deadline pressure and billable hour constraints. They waste time and mental energy because:

Core Problems

  • Key facts are scattered across multiple PDFs (depositions, exhibits, letters, records)
  • Manual search is slow and error-prone - hunting across PDFs wastes billable hours
  • AI tools feel risky when they don't show where answers came from - fear of being wrong publicly

The Vision

"Trust through proof snippets. Speed through AI. Simplicity through design."

MVP Goals

  • Trust: Every answer includes proof snippets from uploaded PDFs
  • Speed: Faster than manual search and copy/paste
  • Simplicity: Calm UI, no dashboards, no complexity
  • Matter-based organization: Everything saved under case/matter

Product Promise

LexVault only answers from uploaded PDFs and always shows supporting excerpts.

If LexVault can't find support in the uploaded documents, it must say: "I can't find support for that in the documents uploaded to this matter."

The Solution – LexVault AI

1Labs.ai designed and built LexVault AI, a RAG-powered legal document intelligence platform that helps litigation attorneys upload PDFs, ask questions, and get answers with verified proof snippets.

Core Capabilities

Matter workspace for case organization
PDF upload (up to 10 per matter)
Natural language Q&A
Verified proof snippets (3-8 per answer)
Copy/export functionality

Key Features Delivered

1. Matter Workspace

Create matter folders (e.g., "Smith v. City Hospital") to organize all case documents and Q&A history in one place.

2. PDF Upload

Upload up to 10 PDFs per matter with progress indicators and document list management.

3. Natural Language Q&A

Ask questions in plain English about your case documents. Get responses quickly with answers grounded in your PDFs.

LexVault Q&A interface showing question and answer with proof snippets

4. Verified Proof Snippets

Every answer includes 3-8 proof snippets with document name, excerpt text, and location (page number when available).

LexVault proof snippets display showing answer with verified citations from documents

5. Copy & Export

One-click copy or download answers with proof snippets for easy sharing with partners and clients.

System Architecture

Backend

  • Database: Supabase (PostgreSQL)
  • Storage: Supabase Storage for PDFs
  • RAG System: Document text extraction & vector search

Data Model

  • Matters: Case folders with title & metadata
  • Documents: PDF files with extracted text
  • Q&A: Questions, answers, and proof snippets

Results & Impact

Speed

Before: Hours of manual PDF search and copy/paste
After: Answers in seconds with verified proof snippets

Trust

Every answer includes proof snippets from uploaded documents. If information isn't found, LexVault gracefully refuses rather than hallucinating.

Simplicity

Calm UI designed like "notes" not "enterprise software." Matter-based organization keeps everything in one place.

Business Impact

Faster document analysis saves billable hours. Trust through proof snippets reduces risk. Simple workflow increases adoption.

Why This Case Study Matters for 1Labs.ai

This project positions 1Labs.ai as:

Experts in Legal Tech AI

Deep understanding of legal workflows and attorney needs

Trust-First AI Design

Building AI systems that prioritize transparency and proof

MVP Speed & Simplicity

Delivering production-ready products with calm, focused UX

AI Product Engineering Partner

Not just an agency—a true technical co-founder

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