Lantern

Lantern is a Coding & Development tool that provides a Postgres vector database and toolkit for building AI applications. It offers advanced search functionality, embedding generation, and LLM integrations directly within Postgres.

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At a glance

Pricing

Freemium · Paid · Usage-based

Free tier

Yes

API

Yes

Skill level

Technical

About

What is Lantern?

Lantern is an open-source Postgres vector database and toolkit designed for developers building production-ready AI applications. It integrates advanced search capabilities like vector search with pgvector and BM25 text search directly into Postgres, eliminating the need for separate vector databases. Lantern also simplifies AI workflows by enabling embedding generation and LLM execution within the database, supporting over 20 embedding models and LLMs from providers like OpenAI and Cohere. It features serverless indexing for scalable performance, allowing for seamless scaling to millions of vectors without compromising database operations. Lantern can be self-hosted or used via Lantern Cloud, a fully managed service, and is easy to use with standard SQL or popular ORMs.

Best used for

Ideal for developers who need to build production-ready AI applications, integrate vector search into existing Postgres databases, and scale efficiently. Especially valuable for those looking to simplify AI workflows by generating embeddings and running LLMs directly within their database using standard SQL.

Common actions

build AI applications

perform vector search

generate embeddings

integrate LLMs

scale databases

Capabilities

Key features

Postgres vector database
Vector search with pgvector
BM25 text search
Hybrid search (vector + BM25)
Serverless indexing
Embedding generation in Postgres
LLM integrations in Postgres

Target Audience

developerdata scientiststartup founder

Integrations

openaicohere

Pricing & Plans

Freemium · Paid · Usage-based

Not publicly disclosed. Check lantern.dev for current pricing.

FAQs

What is the difference between self-hosting Lantern and using Lantern Cloud?

Self-hosting Lantern provides full control over your database infrastructure, while Lantern Cloud is a fully managed service that handles setup, scaling, and maintenance for you. Lantern Cloud also includes support for embedding generation and management.

Can I use Lantern with my existing Postgres database?

Yes, Lantern is built on top of Postgres and supports versions 11-16. You can add AI capabilities to your existing applications by integrating Lantern's extensions and features through SQL queries.

What embedding models and LLMs does Lantern support?

Lantern supports over 20 embedding models and LLMs, including those from OpenAI (e.g., text-embedding-3-large, text-embedding-ada-002), Cohere (e.g., embed-english-v3.0), and various open-source models like BAAI/bge-base-en and jinaai/jina-embeddings-v2-base-en.

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