agent-zero vs aider

agent-zero and aider share 13 technologies: OpenAI, AIOHTTP, starlette, anyio, cryptography, nltk, litellm, sentence-transformers, tiktoken, pillow, beautifulsoup4, Pydantic, and psutil. Both are written in Python.

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What they share and what sets them apart

Only in agent-zero

In common

Aider-AI

aider

aider is AI pair programming in your terminal

Python50kRead on November 5, 2026, at commit 5dc9490What is aider built with?

Only in aider

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
agent-zero294,924 lines written1,062 code files
aider40,345 lines written80 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
aider89.5% of its commits signed by AIWith Aider, Gemini CLI, Codex, and Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
agent-zeroLast push November 5, 20262,688 commits19,756 stars
aiderLast push May 22, 202612,461 commits49,968 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
aider57 test files42.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, agent-zero or aider?
agent-zero, with 294,924 lines written; aider has 40,345.

The proof: agent0ai/agent-zero's code at commit ba9b67d

Which has more GitHub stars, agent-zero or aider?
aider, with 49,968 stars; agent-zero has 19,756.

The proof: Aider-AI/aider on GitHub

Which has more tests, agent-zero or aider?
agent-zero, with 277 test files; aider has 57.

The proof: agent0ai/agent-zero's code at commit ba9b67d

Which was updated more recently, agent-zero or aider?
agent-zero: its last push was on November 5, 2026, and aider's on May 22, 2026.

The proof: agent0ai/agent-zero's commits on GitHub

Which has more commits signed by AI, agent-zero or aider?
aider: an AI signed 89.5% of its commits, with Aider, Gemini CLI, Codex, and Claude Code; in agent-zero, 1.2%.

The proof: the commits each tool signed in Aider-AI/aider

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