# LightRAG

- **Canonical URI:** https://www.vioscale.ai/software/lightrag
- **Category:** RAG Tools
- **Homepage:** https://github.com/HKUDS/LightRAG
- **Also known as:** lightrag
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:33:48.586Z

## Vioscale score

**64.2 / 100**, confidence 16% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 0 | 0.052 | 0 | - |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 86.7 | 0.084 | 7.3 | ✓ |
| repo_stars | 86.6 | 0.026 | 2.3 | ✓ |
| integrations | 0 | 0.09355555555555557 | 0 | - |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 63.1 | 0.094 | 5.9 | ✓ |
| release_cadence | 96.1 | 0.052 | 5 | ✓ |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 0 | 0.042 | 0 | - |
| pricing_transparency | 0 | 0.084 | 0 | - |
| community_qa_activity | 0 | 0.063 | 0 | - |

## About

A lightweight RAG system that processes documents through flexible parsing engines and supports local deployment of embedding, reranking, and storage backends. Includes built-in citation attribution and can work with various open-source LLMs and embedding models.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, Web
- **Deployment:** Cloud / SaaS, On-premise, Self-hosted

## Capabilities

_The capabilities that matter for RAG Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Hybrid retrieval | - |
| Reranking integration | ✓ |
| Multi hop agentic retrieval | - |
| Embedding provider agnostic | ✓ |
| LLM provider agnostic | ✓ |
| Built in rag eval metrics | - |
| Citation attribution | ✓ |
| Multimodal rag | ✓ |
| Managed ingestion pipeline | ✓ |
| Open source | ✓ |

## Release history

| Version | Date | Type |
|---|---|---|
| [v1.5.7rc2](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.7rc2) | 2026-08-19 | stable |
| [v1.5.7rc1](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.7rc1) | 2026-08-17 | prerelease |
| [v1.5.6](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.6) | 2026-08-06 | stable |
| [v1.5.5](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5) | 2026-07-31 | stable |
| [v1.5.5rc1](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5rc1) | 2026-07-13 | prerelease |
| [v1.5.4](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4) | 2026-06-24 | stable |
| [v1.5.3](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.3) | 2026-06-14 | stable |
| [v1.5.2](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.2) | 2026-06-11 | stable |
| [v1.5.1](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.1) | 2026-06-09 | stable |
| [v1.5.0](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.0) | 2026-06-03 | stable |
| [v1.5.0rc3](https://github.com/HKUDS/LightRAG/releases/tag/v1.5.0rc3) | 2026-05-26 | prerelease |
| [v1.4.16](https://github.com/HKUDS/LightRAG/releases/tag/v1.4.16) | 2026-05-07 | stable |
| [v1.4.15](https://github.com/HKUDS/LightRAG/releases/tag/v1.4.15) | 2026-04-19 | stable |
| [v1.4.14](https://github.com/HKUDS/LightRAG/releases/tag/v1.4.14) | 2026-04-12 | stable |
| [v1.4.13](https://github.com/HKUDS/LightRAG/releases/tag/v1.4.13) | 2026-04-02 | stable |

_… and 5 earlier release(s)._

## Security & compliance


Known vulnerabilities: 5 (4 in the last 12 months), max severity CRITICAL ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=lightrag-hku&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | commercial | [link](https://github.com/HKUDS/LightRAG) | 2026-08-26 | 40% (low) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 100 | [link](https://github.com/HKUDS/LightRAG/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 39,203 | [link](https://github.com/HKUDS/LightRAG) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2FHKUDS%2FLightRAG) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Python | [link](https://github.com/HKUDS/LightRAG) | 2026-08-26 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/HKUDS/LightRAG) | 2026-08-26 | 95% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 7 | [link](https://github.com/HKUDS/LightRAG/releases) | 2026-08-26 | 70% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.vulnerabilities | `{"count":5,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=lightrag-hku&per_page=100","last_12m":4,"max_severity":"CRITICAL"}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=lightrag-hku&per_page=100) | 2026-08-26 | 90% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/lightrag). Independent, evidence-based software intelligence. Cite the canonical URI.*