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agent-zero vs llama_index

agent-zero and llama_index share 25 technologies: OpenAI, AIOHTTP, starlette, anyio, cryptography, nltk, LangChain, litellm, MCP, sentence-transformers, tiktoken, lxml-html-clean, markdownify, newspaper3k, pypdf, unstructured, pillow, beautifulsoup4, html2text, pdf2image, pymupdf, Pydantic, boto3, psutil, and docker. Both are written in Python.

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What they share and what sets them apart

agent0ai

agent-zero

Agent Zero AI framework

Python19.8kRead on November 5, 2026, at commit ba9b67dWhat is agent-zero built with?

Only in agent-zero

In common

run-llama

llama_index

LlamaIndex is the document processing platform for AI

Python52.8kRead on November 5, 2026, at commit 444fdf0What is llama_index built with?

Only in llama_index

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
agent-zero294,924 lines written1,062 code files
llama_index473,236 lines written2,055 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
agent-zero1.2% of its commits signed by AIWith Claude Code, Codex, GitHub Copilot, and Cursor
llama_index0.2% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
agent-zeroLast push November 5, 20262,688 commits19,756 stars
llama_indexLast push November 5, 20267,963 commits52,820 stars
TestsThe files that test the code, and the share of code files a test imports.
agent-zero277 test files30.3% of its code files have a test that imports them
llama_index1,607 test files46.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, agent-zero or llama_index?
llama_index, with 473,236 lines written; agent-zero has 294,924.

The proof: run-llama/llama_index's code at commit 444fdf0

Which has more GitHub stars, agent-zero or llama_index?
llama_index, with 52,820 stars; agent-zero has 19,756.

The proof: run-llama/llama_index on GitHub

Which has more tests, agent-zero or llama_index?
llama_index, with 1,607 test files; agent-zero has 277.

The proof: run-llama/llama_index's code at commit 444fdf0

Which was updated more recently, agent-zero or llama_index?
Both got their last push on November 5, 2026.

The proof: run-llama/llama_index's commits on GitHub

Which has more commits signed by AI, agent-zero or llama_index?
agent-zero: an AI signed 1.2% of its commits, with Claude Code, Codex, GitHub Copilot, and Cursor; in llama_index, 0.2%.

The proof: the commits each tool signed in agent0ai/agent-zero

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