What's inside OpenPipe/
OpenPipe/ART is a Python repo with 345,462 lines written. ART is built with FastAPI, AIOHTTP, and weave and uses OpenAI and Anthropic. AI signed 6.6% of the 1,465 commits of ART.
LinkedInARTPython · Apache-2.0
- lines written
- 345,462
- product files
- 415
- test files
- 391
- GitHub stars
- 10,856
Read on November 13, 2026, at commit 534620a.See each one with its proof
The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.
How much of ART did AI write?
Frequently asked questions
What is OpenPipe/ART?
OpenPipe/ART is a Python repo with 345,462 lines written. Its description on GitHub: “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!”
The proof: its page on GitHub
What is ART built with?
ART is built with FastAPI, AIOHTTP, and weave and uses OpenAI and Anthropic.
The proof: each service with its file and line
How much of ART did AI write?
AI signed 6.6% of the 1,465 commits of ART.
The proof: the commits each tool signed
What license does ART have?
ART is released under the Apache-2.0 license.
The proof: its page on GitHub
How many stars does ART have on GitHub?
ART had 10,856 stars on GitHub on November 13, 2026.
The proof: its page on GitHub
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