Source: https://seerepo.com/compare/agent0ai/agent-zero/vs/Aider-AI/aider
Markdown source: https://seerepo.com/compare/agent0ai/agent-zero/vs/Aider-AI/aider.md
Description: 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.

# 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.

- [agent0ai/agent-zero](https://seerepo.com/r/agent0ai/agent-zero): Agent Zero AI framework
- [Aider-AI/aider](https://seerepo.com/r/Aider-AI/aider): aider is AI pair programming in your terminal

## What they share and what sets them apart

- In common: OpenAI, AIOHTTP, starlette, anyio, cryptography, nltk, litellm, sentence-transformers, tiktoken, pillow, beautifulsoup4, Pydantic, psutil
- Only in agent-zero: Flask, a2wsgi, werkzeug, aiogram, uvicorn, fastmcp, Express, openai-whisper, LangChain, langchain-community, faiss-cpu, MCP, kokoro, lxml-html-clean, markdownify, newspaper3k, pypdf, unstructured, html2text, markdown, pdf2image, pymupdf, pytesseract, boto3, docker
- Only in aider: aiosqlite, gitdb, google-cloud-core, pyarrow, SQLite, diskcache, PostHog, asgiref, FastAPI, tornado, Streamlit, cycler, fonttools, soupsieve, contourpy, matplotlib, Rich, prompt-toolkit, SQLAlchemy, Google, llama-index-instrumentation, llama-index-workflows, safetensors, scikit-learn, tokenizers, torch, transformers, llama-index-core, llama-index-embeddings-huggingface, filetype, jinja2, markdown-it-py, markupsafe, mdurl, tinytag, pypandoc, annotated-types, jsonschema-specifications, marshmallow, referencing, jsonschema

## Side by side

| | agent-zero | aider |
|---|---|---|
| Size | 294,924 lines written, 1,062 code files | 40,345 lines written, 80 code files |
| Who writes it | 1.2% of its commits signed by AI. With Claude Code, Codex, GitHub Copilot, and Cursor | 89.5% of its commits signed by AI. With Aider, Gemini CLI, Codex, and Claude Code |
| Activity | Last push November 5, 2026, 2,688 commits, 19,756 stars | Last push May 22, 2026, 12,461 commits, 49,968 stars |
| Tests | 277 test files. 30.3% of its code files have a test that imports them | 57 test files. 42.5% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## 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](https://github.com/agent0ai/agent-zero/tree/ba9b67df0f54ac78106ae85c552ef5d2458f7c9a)

### 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](https://github.com/Aider-AI/aider)

### 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](https://github.com/agent0ai/agent-zero/tree/ba9b67df0f54ac78106ae85c552ef5d2458f7c9a)

### 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](https://github.com/agent0ai/agent-zero/commits)

### 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](https://seerepo.com/r/Aider-AI/aider/ai)

## Sources

- agent0ai/agent-zero: Read on November 5, 2026, at commit ba9b67d (https://github.com/agent0ai/agent-zero/tree/ba9b67df0f54ac78106ae85c552ef5d2458f7c9a)
- Aider-AI/aider: Read on November 5, 2026, at commit 5dc9490 (https://github.com/Aider-AI/aider/tree/5dc9490bb35f9729ef2c95d00a19ccd30c26339c)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.