Search & Discovery

Search with Lepton

Build your own conversational search engine using less than 500 lines of code.

Status
UnmaintainedGitHub repository has been archived.
Last checked
Checked · Oct 12, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

LeptonAI's Search with Lepton allows developers to create a conversational search engine in under 500 lines of code, making it easy and efficient for teams to integrate AI-driven search capabilities into their applications.

Search with Lepton stands out by offering an extremely lightweight and efficient way to build conversational search engines, allowing developers to focus on customization rather than infrastructure management.

When it fits — and when it doesn’t

A good fit for

  • Developers looking for a lightweight, self-hosted solution to build conversational search engines quickly and efficiently.

  • Teams that need full control over their data and infrastructure without relying on cloud services.

Look elsewhere if

  • Projects requiring real-time streaming capabilities as the tool is designed for batch processing.

  • Budget-constrained projects where a self-hosted solution might require significant setup costs.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited third-party integration support

    Documentation lacks examples for integrating with popular search engines or databases beyond Elasticsearch

  2. 02

    Performance issues at scale

    Query response times degrade significantly when indexing large datasets (>10,000 documents)

What it does well

  • Less than 500 lines of code to build a conversational search engine

  • Open-source under Apache-2.0 license

  • Self-hosted solution for full control over data and infrastructure

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Search with Lepton

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
Get the badge

A small badge for Search with Lepton’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.

Search with Lepton — tracked on AI Navigator

Markdown

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HTML

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