Perplexica vs 
Lepton Search
Perplexica vs Lepton Search compared for 2026 — features, license, ease of use, performance and which one to choose. Open-source Perplexity you self-host vs A conversational search engine in 500 lines.
Updated regularly · curated by OpenSourceAI.tech
Perplexica vs Lepton Search at a glance
| Spec | Perplexica | Lepton Search |
|---|---|---|
| Category | AI search engines | AI search engines |
| Type | AI answer engine | AI search engine |
| License | MIT | Apache-2.0 |
| Runs locally | Self-hosted | Yes |
| Primary language | TypeScript | Python |
| Ease of use | Intermediate | Beginner |
| Best for | users who want private, sourced AI answers | learning how answer engines work |
| GitHub stars | — | — |
How Perplexica and Lepton Search score
| Criterion | Perplexica | Lepton Search |
|---|---|---|
| Popularity | n/a | n/a |
| Maintenance | n/a | n/a |
| Ease of use | 3.5 | 5.0 |
| Privacy | 4.5 | 5.0 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
Perplexica
Perplexica is an open-source AI answer engine that searches the web and answers with cited sources, running entirely on your infrastructure with local model support.
- Answers with cited sources like Perplexity
- Works with local models via Ollama
- Fully self-hosted and private
Lepton Search
Lepton Search is a minimal, readable conversational search engine — a great starting point to build your own answer engine.
- Under 500 lines, very readable
- Easy to fork and customize
- Good teaching example
Key differences
Perplexica is aI answer engine, while Lepton Search is aI search engine. Their licenses differ (MIT vs Apache-2.0), which matters if you ship a commercial product. Perplexica leans more intermediate-friendly, whereas Lepton Search is more suited to beginner users. They also differ in how they run (Self-hosted vs Yes). In short, Perplexica fits users who want private, sourced AI answers, and Lepton Search fits learning how answer engines work.
Which should you choose?
Choose Perplexica for users who want private, sourced AI answers. Choose Lepton Search for learning how answer engines work.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is Perplexica or Lepton Search easier to use?
Lepton Search is generally the easier of the two to get started with, while Perplexica rewards more setup with more control.
Are Perplexica and Lepton Search free?
Perplexica is free and open source (MIT), and Lepton Search is free and open source (Apache-2.0). Neither charges for the core software.
Can I run Perplexica and Lepton Search locally?
Perplexica: self-hosted · Lepton Search: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
Perplexica vs Lepton Search — which should I pick in 2026?
Choose Perplexica for users who want private, sourced AI answers. Choose Lepton Search for learning how answer engines work.
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