# Google Vertex AI Search vs LightRAG

| Attribute | Google Vertex AI Search | LightRAG |
|---|---|---|
| **Vioscale score** | 22.7 (25% (low)) | 64.2 (16% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | - | 39,203 |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | A comprehensive development platform that enables teams to rapidly create and scale autonomous agents powered by multiple AI model options, with built-in governance, enterprise data grounding, and integration capabilities. | 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. |
| features.capabilities | `{"multimodal_rag":true,"llm_provider_agnostic":true,"managed_ingestion_pipeline":true}` | `{"open_source":true,"multimodal_rag":true,"citation_attribution":true,"llm_provider_agnostic":true,"reranking_integration":true,"managed_ingestion_pipeline":true,"embedding_provider_agnostic":true}` |
| integrations.count | 8 | - |
| integrations.list | `[{"name":"Google Cloud Storage"},{"name":"Google Cloud Logging"},{"name":"Google Cloud Monitoring"},{"name":"BigQuery"},{"name":"Cloud Data Fusion"},{"name":"Cloud Dataflow"},{"name":"Cloud Composer"},{"name":"Service Directory"}]` | - |
| language.primary | - | Python |
| license.spdx | - | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","summary":"Pay-as-you-go for platform tools, storage, compute, and cloud resources. New customers receive $300 in free credits.","currency":"USD","freeTier":false,"sourceUrl":"https://cloud.google.com/vertex-ai-search-and-conversation","retrievedAt":"2026-08-21T11:00:35.778Z"}` | - |
| pricing.free_tier | no | - |
| pricing.model | commercial | commercial |
| pricing.price_level | unknown | - |
| pricing.transparent | no | - |
| release.cadence_days | - | 7 |
| release.history | - | `[{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.7rc2","date":"2026-08-19T07:01:48Z","type":"stable","version":"v1.5.7rc2"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.7rc1","date":"2026-08-17T06:47:01Z","type":"prerelease","version":"v1.5.7rc1"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.6","date":"2026-08-06T08:29:47Z","type":"stable","version":"v1.5.6"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5","date":"2026-07-31T12:07:29Z","type":"stable","version":"v1.5.5"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5rc1","date":"2026-07-13T19:33:37Z","type":"prerelease","version":"v1.5.5rc1"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4","date":"2026-06-24T10:24:01Z","type":"stable","version":"v1.5.4"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.3","date":"2026-06-14T06:21:33Z","type":"stable","version":"v1.5.3"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.2","date":"2026-06-11T06:14:51Z","type":"stable","version":"v1.5.2"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.1","date":"2026-06-09T08:32:30Z","type":"stable","version":"v1.5.1"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.0","date":"2026-06-03T01:54:09Z","type":"stable","version":"v1.5.0"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.0rc3","date":"2026-05-26T09:27:02Z","type":"prerelease","version":"v1.5.0rc3"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.16","date":"2026-05-07T19:34:01Z","type":"stable","version":"v1.4.16"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.15","date":"2026-04-19T08:40:25Z","type":"stable","version":"v1.4.15"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.14","date":"2026-04-12T20:43:18Z","type":"stable","version":"v1.4.14"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.13","date":"2026-04-02T17:00:24Z","type":"stable","version":"v1.4.13"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.12","date":"2026-03-27T05:52:31Z","type":"stable","version":"v1.4.12"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.11","date":"2026-03-20T08:41:06Z","type":"stable","version":"v1.4.11"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.11rc2","date":"2026-03-13T06:19:07Z","type":"stable","version":"v1.4.11rc2"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.10","date":"2026-02-27T07:39:59Z","type":"stable","version":"v1.4.10"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.4.9.11","date":"2026-01-15T18:27:15Z","type":"stable","version":"v1.4.9.11"}]` |
| 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"}` |

## Capabilities (RAG Tools)

| Capability | Google Vertex AI Search | LightRAG |
|---|:--:|:--:|
| **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 | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T17:22:30.591Z. "-" = undocumented, not absent.*