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What is LightOn?

LightOn is an AI-powered document processing and retrieval platform designed to operate securely behind a corporate firewall. Built by LightOn AI, it solves the problem of extracting structured data from complex documents and enabling grounded retrieval with citations. Core capabilities include state-of-the-art OCR parsing (LightOnOCR-2), schema-based field extraction, and hybrid search combining dense, sparse, and late-interaction signals. The platform supports 20+ languages, offers open-source models on HuggingFace, and integrates via API or SDK. It is ideal for enterprise teams handling contracts, invoices, regulatory documents, and multi-jurisdiction reviews. Users include legal, compliance, risk, and data teams who need secure, auditable AI without data leaks. LightOn also provides MCP-native integration for agentic workflows and supports custom workspaces with chunk-level access control.

AI Tool Review Summary

Performance Score

4.7/5

Content/Output Quality

High, consistent, and on-brand

Interface

Clean and minimal

AI Technology
LLMOCRNLPHybrid Search
Purpose of Tool

To provide secure, enterprise-grade document parsing, extraction, and retrieval with grounded citations.

Compatibility

API and SDK integration with any LLM, MCP-native for agent frameworks, and sync with SharePoint, Drive, Confluence, and file servers.

Pricing

Freemium with paid tiers

Features

Features with the highest value for users are highlighted here.

Document parsing to structured Markdown

Schema-based field extraction

Hybrid search with dense, sparse, and late-interaction signals

Grounded retrieval with citations

MCP-native agent integration

Chunk-level access control

LLM-agnostic architecture

On-premise deployment

How It Works

1

Upload or link documents

Provide a URL or upload a file to the /parse, /extract, or /search endpoint.

2

Define your schema

For extraction, specify a JSON schema to pull fields like invoice numbers or contract clauses.

3

Process and retrieve

The engine parses, extracts, or searches with hybrid retrieval, returning structured data with citations.

4

Integrate into workflows

Use the API or MCP-native protocol to connect with agents, CRMs, or ERPs behind your firewall.

Who Is It For?

Legal teams

Compliance officers

Risk analysts

Data engineers

Enterprise architects

Product teams

IT administrators

Research teams

Customer support

Startups

Pricing

Free

$0/free
  • Limited API calls
  • Community support

Pro

$0.002 per page/monthly
  • Full /parse access
  • Email support
Popular

Enterprise

Custom/monthly
  • All endpoints
  • SSO, RBAC, SCIM
  • Dedicated support

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Pros & Cons

Pros

  • Enterprise-grade security with SSO, RBAC, and on-premise deployment.
  • Highly accurate parsing and extraction, supporting 20+ languages and complex layouts.

Cons

  • Pricing per page/query may be costly for high-volume use.
  • Setup and integration require technical expertise for optimal configuration.

FAQs

Just Launched

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Reviews

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Rating

5.0

Pros

Cons

Quick LightOn Comparision

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Release History

0 releases published

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