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Issue 001 / A living technical almanac

Rankings never sold

Agent Frameworks · Head-to-head

eliza vs langchain

eliza and langchain are both agent frameworks. eliza is Open source agentic operating system, while langchain is the agent engineering platform. Here's an independent, side-by-side look at how they compare — and which fits.

eliza

Framework· Open source

Open source agentic operating system

Visit eliza
langchain

Framework· Open source

The agent engineering platform.

Visit langchain

Bottom line

eliza and langchain are both open-source agent frameworks you can self-host for free. langchain has wider GitHub adoption — 141k stars vs 19k. Neither is universally better — pick by fit.

Side by side

Specelizalangchain
TypeFrameworkFramework
ModelOpen sourceOpen source
PricingOpen sourceOpen source
GitHub stars18,717141,411
LanguageTypeScriptPython
LicenseMITMIT
Last activityJul 2026Jul 2026

Key differences

  • langchain has wider GitHub adoption — 141k stars vs 19k.
  • eliza is written primarily in TypeScript; langchain in Python.

Choose eliza if

your team works primarily in TypeScript.

Choose langchain if

Builders who want composable primitives and the broadest ecosystem of integrations for LLM applications..

About eliza

Open source agentic operating system

Full eliza profile →

About langchain

The agent engineering platform.

Full langchain profile →

Frequently asked

What's the main difference between eliza and langchain?
langchain has wider GitHub adoption — 141k stars vs 19k.
Is eliza or langchain better?
Neither is universally better. eliza is the stronger fit for teams working primarily in TypeScript; langchain for Builders who want composable primitives and the broadest ecosystem of integrations for LLM applications. Use the side-by-side specs to decide by your own constraints.
Is eliza or langchain free?
eliza is free to run and self-host; langchain is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.
Which is more popular, eliza or langchain?
By GitHub stars — a proxy for open-source adoption — langchain is ahead (141k vs 19k). Stars measure attention, not necessarily the better fit for you.
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