LangChain
The agent engineering platform
97
Static comparison
LangChain vs LlamaIndex
LangChain has the stronger current ToolVitals signal, but check fit, license class, source coverage, and confidence before switching.
LlamaIndex
LlamaIndex is the leading document agent and OCR platform
95
Evidence comparison
| Use case | AI Agent Tools | AI Agent Tools |
|---|---|---|
| Openness | OSI-approved OSS | OSI-approved OSS |
| License | MIT | MIT |
| Health | 98 | 96 |
| Shipping | 97 | 94 |
| ToolVitals score | 97 | 95 |
| Data confidence | 90 | 90 |
| Source coverage | 100 | 100 |
| GitHub stars | 146,005 | 52,099 |
| Forks | 24,388 | 8,099 |
| Watchers | 917 | 286 |
| Open issues | 464 | 745 |
| Last commit | Sep 11, 2026 | Sep 11, 2026 |
| Commits (30d) | 191 | 43 |
| Commits (90d) | 622 | 106 |
| Active contributors (90d) | 46 | 62 |
| Releases (90d) | 30 | 2 |
| Status reason | Commit continuity, contributor activity, and delivery signals are strong. | Commit continuity, contributor activity, and delivery signals are strong. |
Decision notes
How to read this matchup
Both tools are tracked under AI Agent Tools, so this is a closer alternative comparison.
The overall signal is close; license, source quality, and fit matter more than the headline score.
LangChain is tracked as OSI-approved open source with high confidence in ToolVitals data.
LlamaIndex is tracked as OSI-approved open source with high confidence in ToolVitals data.
Comparison FAQ
Which has the stronger ToolVitals signal, LangChain or LlamaIndex?
LangChain has the stronger current ToolVitals signal, but check fit, license class, source coverage, and confidence before switching.
Are LangChain and LlamaIndex direct alternatives?
Yes. ToolVitals classifies both tools in the AI Agent Tools use case, so the score, health, shipping, source coverage, and license rows can be read as a close comparison.
Do sponsors affect this comparison?
No. Sponsors and affiliate links do not affect ToolVitals scores, rankings, risk labels, or evidence display.
Editorial independence
Affiliate CTAs, when present, use sponsored links and never affect scores, rankings, risk labels, evidence freshness, or comparison verdicts.