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openpi vs llama_index

openpi and llama_index share 7 technologies: Rich, opencv-python, torch, einops, transformers, sentencepiece, and pillow. Both are written in Python.

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What they share and what sets them apart

Physical-Intelligence

openpi

Python14.6kRead on November 9, 2026, at commit 215abfbWhat is openpi built with?

Only in openpi

In common

run-llama

llama_index

LlamaIndex is the document processing platform for AI

Python52.9kRead on November 13, 2026, at commit baeabbfWhat is llama_index built with?

Only in llama_index

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
openpi17,200 lines written52 code files
llama_index473,258 lines written2,055 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.
openpi0.7% of its commits signed by AIWith Claude Code
llama_index0.2% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
openpiLast push August 24, 2026150 commits14,578 stars
llama_indexLast push November 11, 20267,967 commits52,885 stars
TestsThe files that test the code, and the share of code files a test imports.
openpi14 test files26.9% of its code files have a test that imports them
llama_index1,607 test files46.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, openpi or llama_index?
llama_index, with 473,258 lines written; openpi has 17,200.

The proof: run-llama/llama_index's code at commit baeabbf

Which has more GitHub stars, openpi or llama_index?
llama_index, with 52,885 stars; openpi has 14,578.

The proof: run-llama/llama_index on GitHub

Which has more tests, openpi or llama_index?
llama_index, with 1,607 test files; openpi has 14.

The proof: run-llama/llama_index's code at commit baeabbf

Which was updated more recently, openpi or llama_index?
llama_index: its last push was on November 11, 2026, and openpi's on August 24, 2026.

The proof: run-llama/llama_index's commits on GitHub

Which has more commits signed by AI, openpi or llama_index?
openpi: an AI signed 0.7% of its commits, with Claude Code; in llama_index, 0.2%.

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