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polars vs llama_index

polars and llama_index share 13 technologies: aiosqlite, s3fs, pyarrow, pyiceberg, DuckDB, lancedb, SQLite, matplotlib, SQLAlchemy, azure-identity, torch, Pydantic, and boto3. polars is written in Rust and llama_index in Python.

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What they share and what sets them apart

pola-rs

polars

Extremely fast Query Engine for DataFrames, written in Rust

Rust40.3kRead on November 6, 2026, at commit a2a4deaWhat is polars built with?

Only in polars

  • polars-io
  • pylance
  • object_store
  • deltalake
  • adbc-driver-manager
  • adbc-driver-sqlite
  • Flask
  • flask-cors
  • Tokio
  • pydata-sphinx-theme
  • sphinx-design
  • altair
  • comfy-table
  • jax
  • xlsxwriter
  • openpyxl
  • schemars

In common

run-llama

llama_index

LlamaIndex is the document processing platform for AI

Python52.8kRead on November 5, 2026, at commit 444fdf0What 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.
polars953,615 lines written2,273 code files
llama_index473,236 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.
polars0.9% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, and Gemini CLI
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.
polarsLast push November 6, 202616,254 commits40,274 stars
llama_indexLast push November 5, 20267,963 commits52,820 stars
TestsThe files that test the code, and the share of code files a test imports.
polars671 test files11% 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, polars or llama_index?
polars, with 953,615 lines written; llama_index has 473,236.

The proof: pola-rs/polars's code at commit a2a4dea

Which has more GitHub stars, polars or llama_index?
llama_index, with 52,820 stars; polars has 40,274.

The proof: run-llama/llama_index on GitHub

Which has more tests, polars or llama_index?
llama_index, with 1,607 test files; polars has 671.

The proof: run-llama/llama_index's code at commit 444fdf0

Which was updated more recently, polars or llama_index?
polars: its last push was on November 6, 2026, and llama_index's on November 5, 2026.

The proof: pola-rs/polars's commits on GitHub

Which has more commits signed by AI, polars or llama_index?
polars: an AI signed 0.9% of its commits, with Claude Code, Cursor, GitHub Copilot, and Gemini CLI; in llama_index, 0.2%.

The proof: the commits each tool signed in pola-rs/polars

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