ai-agent-book vs ART

ai-agent-book and ART share 10 technologies: FastAPI, OpenAI, Anthropic, AIOHTTP, unsloth-zoo, torch, transformers, peft, litellm, and Pydantic. Both are written in Python.

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What they share and what sets them apart

In common

OpenPipe

ART

Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen3.6, GPT-OSS, Llama, and more!

Python10.9kRead on November 13, 2026, at commit 534620aWhat is ART built with?

Only in ART

  • weave
  • apache-tvm-ffi
  • causal-conv1d
  • flash-attn-4
  • flash-linear-attention
  • flashinfer-python
  • megatron-core
  • ml-dtypes
  • NVIDIA
  • quack-kernels
  • torchtune
  • msgspec

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ai-agent-book422,447 lines written1,067 code files
ART345,462 lines written415 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.
ai-agent-book20.8% of its commits signed by AIWith Claude Code
ART6.6% of its commits signed by AIWith Claude Code, Cursor, Codex, and Amp
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-agent-bookLast push October 8, 20261,610 commits57,873 stars
ARTLast push November 10, 20261,465 commits10,856 stars
TestsThe files that test the code, and the share of code files a test imports.
ai-agent-book624 test files34.3% of its code files have a test that imports them
ART391 test files49.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ai-agent-book or ART?
ai-agent-book, with 422,447 lines written; ART has 345,462.

The proof: bojieli/ai-agent-book's code at commit dbc046e

Which has more GitHub stars, ai-agent-book or ART?
ai-agent-book, with 57,873 stars; ART has 10,856.

The proof: bojieli/ai-agent-book on GitHub

Which has more tests, ai-agent-book or ART?
ai-agent-book, with 624 test files; ART has 391.

The proof: bojieli/ai-agent-book's code at commit dbc046e

Which was updated more recently, ai-agent-book or ART?
ART: its last push was on November 10, 2026, and ai-agent-book's on October 8, 2026.

The proof: OpenPipe/ART's commits on GitHub

Which has more commits signed by AI, ai-agent-book or ART?
ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in ART, 6.6%.

The proof: the commits each tool signed in bojieli/ai-agent-book

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