LangChain Core vs LlamaIndex

Head-to-head adoption data comparison based on real metrics

Data updated daily — latest collection:
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LangChain Core
Framework
Monthly Downloads
0
GitHub Stars
127,828
Forks
20,997
Open Issues
418
Description
Core abstractions and runtime for LangChain ecosystem
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🦙
LlamaIndex
Framework
Monthly Downloads
388.4K
Total: 388.4K
GitHub Stars
44,083
Forks
6,336
Open Issues
270
Description
Data framework for LLM applications with RAG and agents
Visit website →

Side-by-Side Metrics

Metric LangChain Core LlamaIndex
Monthly Downloads 0 388.4K Leader
GitHub Stars 127,828 Leader 44,083
GitHub Forks 20,997 Leader 6,336
Open Issues 418 Leader 270
Community Mentions 0 0

Summary

LlamaIndex has 388.4K monthly downloads while LangChain Core is not distributed via package registries, while LangChain Core leads in community popularity with 190% more GitHub stars than LlamaIndex.

Historical Comparison

See how this comparison has changed over the last 30, 60, and 90 days with download and star trends plotted over time.

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About This Data

This comparison uses real adoption metrics collected daily from NPM, PyPI, GitHub, benchmark leaderboards, and pricing data sources. Download counts reflect cumulative totals and weekly/monthly snapshots from the most recent scraper run. All data is publicly verifiable.

Latest data collection: (scrapers run daily)

Sources: NPM Registry API, PyPI API, GitHub API, SWE-bench, Official Pricing Pages

View LangChain Core Details View LlamaIndex Details Compare Other Tools

Last updated: | Data collected from NPM, PyPI, GitHub, and vendor pricing pages