Legal AIDemo

GoGreen DOC-AI

Legal Document Intelligence with 3-Tier RAG

Upload legal documents and get AI-powered summaries, Q&A with citations, and contract risk scoring. Built on a 3-tier RAG architecture — Basic RAG, LangChain RAG (ChatAnthropic + QdrantVectorStore + 5-turn memory), and Graph RAG (entity extraction + BM25 + RRF) — for unmatched accuracy and context.

GoGreen DOC-AI - Legal Document Intelligence Platform

3-Tier RAG

Basic, LangChain, and Graph RAG for maximum retrieval accuracy

LangChain Powered

ChatAnthropic + QdrantVectorStore + 5-turn conversational memory

5-Role RBAC

Admin, Manager, Lawyer, Paralegal, and Viewer access control

Powered by LangChain

LangChain Integration

  • ChatAnthropic for Claude-powered generation
  • QdrantVectorStore for vector retrieval
  • ConversationBufferWindowMemory (5 turns)
  • RetrievalQAChain with source documents
  • Streaming responses via LangChain callbacks
  • Custom document loaders and splitters

Why LangChain?

  • Modular chain composition for complex workflows
  • Built-in memory management across sessions
  • Seamless Anthropic Claude integration
  • Production-ready vector store connectors
  • Extensible retrieval strategies
  • Active open-source ecosystem

Platform Features

Document Upload & Processing

Upload legal documents in any format. AI extracts text, metadata, and structure for intelligent analysis.

  • PDF, DOCX, and image upload support
  • OCR for scanned documents
  • Automatic metadata extraction
  • Document versioning and history
  • MinIO object storage backend
  • Batch upload and processing

AI Summarization & Q&A

Get instant summaries and ask natural language questions about your documents with cited answers.

  • One-click document summarization
  • Natural language Q&A with citations
  • Page-level source references
  • Multi-document cross-referencing
  • Powered by Claude via LangChain ChatAnthropic
  • 5-turn conversational memory

Contract Analysis & Risk Scoring

AI-powered contract review that identifies risks, obligations, and key clauses with confidence scoring.

  • Automated risk scoring (Low/Medium/High/Critical)
  • Obligation and deadline extraction
  • Key clause identification
  • Non-standard term detection
  • Liability and indemnification analysis
  • Renewal and termination tracking

LangChain RAG Pipeline

Advanced retrieval-augmented generation using LangChain with ChatAnthropic, QdrantVectorStore, and 5-turn memory.

  • LangChain ChatAnthropic integration
  • QdrantVectorStore for vector search
  • OpenAI Embeddings (3072-dimensional)
  • 5-turn conversational memory buffer
  • Contextual retrieval with re-ranking
  • Streaming response generation

3-Tier RAG Architecture

Three levels of retrieval — Basic RAG, LangChain RAG, and Graph RAG — for maximum accuracy and context.

  • Tier 1: Basic RAG (cosine similarity search)
  • Tier 2: LangChain RAG (ChatAnthropic + QdrantVectorStore)
  • Tier 3: Graph RAG (entity extraction + relationships)
  • BM25 sparse retrieval for keyword matching
  • Reciprocal Rank Fusion (RRF) scoring
  • Hybrid dense + sparse retrieval

5-Role RBAC & Multi-Tenancy

Enterprise role-based access control with Admin, Manager, Lawyer, Paralegal, and Viewer roles.

  • 5 roles: Admin, Manager, Lawyer, Paralegal, Viewer
  • Multi-tenant workspace isolation
  • Document-level permission controls
  • Audit trail for all actions
  • Team collaboration features
  • SSO and OAuth integration

3-Tier RAG Architecture

Tier 1: Basic RAG

Direct cosine similarity search against Qdrant vector store with OpenAI 3072-dimensional embeddings.

Tier 2: LangChain RAG

ChatAnthropic + QdrantVectorStore + 5-turn conversational memory buffer for contextual multi-turn Q&A.

Tier 3: Graph RAG

Entity extraction, relationship mapping, BM25 sparse retrieval, and Reciprocal Rank Fusion (RRF) for maximum accuracy.

3-Tier

RAG Architecture

5

RBAC Roles

3072

Embedding Dims

5-Turn

Memory Buffer

Tech Stack

Next.js 16FastAPI (Python)TypeScriptPostgreSQLQdrantRedisMinIOLangChainDockerNginx

AI Models

Claude (via LangChain ChatAnthropic)OpenAI Embeddings (3072-dim)

Transform Your Legal Document Workflow

Upload, analyze, and understand legal documents in seconds with 3-tier RAG intelligence powered by LangChain and Claude.