Head-to-head

LangChain vs LlamaIndex: GitHub, npm & hiring signals

A live, signal-by-signal comparison of LangChain and LlamaIndex — GitHub stars, npm downloads, and how many of the 27 public signal sources Sigmon can track for each. Numbers below are detected right now.

LangChain

langchain-ai

Top-repo stars
146.2k
npm/wk
2.1M
Trackable sources
27/27
Domain
www.langchain.com
Full LangChain signal breakdown

LlamaIndex

run-llama

Top-repo stars
52.1k
npm/wk
84.3k
Trackable sources
27/27
Domain
llamaindex.ai
Full LlamaIndex signal breakdown

Don't just compare — monitor both

Stars and downloads are lagging indicators. Sigmon tracks LangChain and LlamaIndex across leading signals — SEC Form D funding filings, senior-role hiring surges, README positioning pivots, release velocity, certificate-transparency staging spikes — and ships one weekly strategic brief on what each is about to do, before it hits Hacker News.

Track LangChain and LlamaIndex — free, in 60 seconds

Add both as competitors and get a weekly brief on what each ships, hires, and raises. No scraping, no credit card.

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Frequently asked questions

Is LangChain or LlamaIndex more popular?
By GitHub stars, LangChain currently leads LlamaIndex (146.2k vs 52.1k). Stars are only one signal — Sigmon also tracks npm downloads, release velocity and hiring so you can judge momentum, not just size.
How do LangChain and LlamaIndex compare?
This page puts LangChain and LlamaIndex side by side on the signals that predict momentum: GitHub stars and release cadence, npm download trend, hiring activity and pricing changes — refreshed weekly.
Can I track both LangChain and LlamaIndex?
Yes. Add both to Sigmon free and get a single weekly brief covering every move either one makes — releases, pricing changes, funding and hiring.