Source: https://seerepo.com/compare/bojieli/ai-agent-book/vs/hydra-ecosystem/hydra
Markdown source: https://seerepo.com/compare/bojieli/ai-agent-book/vs/hydra-ecosystem/hydra.md
Description: ai-agent-book and hydra share 3 technologies: AIOHTTP, torch, and colorlog. Both are written in Python.

# ai-agent-book vs hydra

ai-agent-book and hydra share 3 technologies: AIOHTTP, torch, and colorlog. Both are written in Python.

- [bojieli/ai-agent-book](https://seerepo.com/r/bojieli/ai-agent-book): 《深入理解 AI Agent：设计原理与工程实践》（李博杰 著）开源主仓库：全书正文、编译版 PDF 与按章配套代码
- [hydra-ecosystem/hydra](https://seerepo.com/r/hydra-ecosystem/hydra): Hydra is a framework for elegantly configuring complex applications

## What they share and what sets them apart

- In common: AIOHTTP, torch, colorlog
- Only in ai-agent-book: React, uvicorn, FastAPI, azure-search-documents, azure-storage-blob, chromadb, psycopg2-binary, Postgres, pyarrow, OpenAI, Anthropic, Hugging Face, Google, Mistral AI, PostHog, fastmcp, Flask, anyio, Next.js, Vite, Express, Astro, mkdocs-material, Rich, matplotlib, seaborn, Plotly, authlib, google-auth, google-auth-httplib2, google-auth-oauthlib, pyotp, accelerate, bitsandbytes, cut-cross-entropy, faiss-cpu, graphrag, lightgbm, mem0ai, minicpmo-utils, nltk, openai-whisper, raptor-rag, scikit-image, sentencepiece, trackio, triton, umap-learn, unsloth-zoo, xformers, xgboost, browser-use, transformers, MCP, peft, datasets, tiktoken, unsloth, litellm, Ollama, scikit-learn, rank-bm25, groq, librosa, trl, fish-audio-sdk, snac, torchaudio, annoy, flagembedding, opencv-python, sentence-transformers, gradio-client, hnswlib, langchain-openai, memobase, mlx-audio, vLLM, lxml, python-magic, torchcodec, xlrd, xlsxwriter, beautifulsoup4, pillow, python-pptx, pypdf2, reportlab, html2text, pypdf, python-docx, openpyxl, aiosmtplib, markdown, pdfplumber, pymupdf, sendgrid, youtube-transcript-api, yt-dlp, Pydantic, structlog, loguru, psutil, pptxgenjs, sharp, Tailwind CSS, D3, recharts, onnxruntime-node, class-variance-authority, tailwind-merge, Radix UI, react-syntax-highlighter, Lucide, react-markdown, remark-gfm, fontsource-variable, katex
- Only in hydra: rq, Ray, ax-platform, nevergrad, Optuna, boto3, submitit

## Side by side

| | ai-agent-book | hydra |
|---|---|---|
| Size | 422,447 lines written, 1,067 code files | 71,178 lines written, 121 code files |
| Who writes it | 20.8% of its commits signed by AI. With Claude Code | 0.4% of its commits signed by AI. With GitHub Copilot, Claude Code, and Cursor |
| Activity | Last push October 8, 2026, 1,610 commits, 57,873 stars | Last push November 12, 2026, 2,248 commits, 10,744 stars |
| Tests | 624 test files. 34.3% of its code files have a test that imports them | 250 test files. 60.3% 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, ai-agent-book or hydra?

ai-agent-book, with 422,447 lines written; hydra has 71,178.

The proof: [bojieli/ai-agent-book's code at commit dbc046e](https://github.com/bojieli/ai-agent-book/tree/dbc046eb896ac4e39aa19c7774c8bf49583b89a6)

### Which has more GitHub stars, ai-agent-book or hydra?

ai-agent-book, with 57,873 stars; hydra has 10,744.

The proof: [bojieli/ai-agent-book on GitHub](https://github.com/bojieli/ai-agent-book)

### Which has more tests, ai-agent-book or hydra?

ai-agent-book, with 624 test files; hydra has 250.

The proof: [bojieli/ai-agent-book's code at commit dbc046e](https://github.com/bojieli/ai-agent-book/tree/dbc046eb896ac4e39aa19c7774c8bf49583b89a6)

### Which was updated more recently, ai-agent-book or hydra?

hydra: its last push was on November 12, 2026, and ai-agent-book's on October 8, 2026.

The proof: [hydra-ecosystem/hydra's commits on GitHub](https://github.com/hydra-ecosystem/hydra/commits)

### Which has more commits signed by AI, ai-agent-book or hydra?

ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in hydra, 0.4%.

The proof: [the commits each tool signed in bojieli/ai-agent-book](https://seerepo.com/r/bojieli/ai-agent-book/ai)

## Sources

- bojieli/ai-agent-book: Read on November 13, 2026, at commit dbc046e (https://github.com/bojieli/ai-agent-book/tree/dbc046eb896ac4e39aa19c7774c8bf49583b89a6)
- hydra-ecosystem/hydra: Read on November 13, 2026, at commit fdd1cbb (https://github.com/hydra-ecosystem/hydra/tree/fdd1cbb80369222e9e132f107456a9c8af1842cb)

## 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.