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dagster vs llama_index

dagster and llama_index share 20 technologies: psycopg2-binary, azure-storage-blob, pyarrow, DuckDB, MySQL, Google, starlette, AIOHTTP, Rich, SQLAlchemy, azure-identity, pyjwt, OpenAI, jinja2, Pydantic, jsonschema, boto3, docker, psutil, and prometheus-client. Both are written in Python.

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What they share and what sets them apart

dagster-io

dagster

An orchestration platform for the development, production, and observation of data assets.

Python16.4kRead on November 7, 2026, at commit 55208daWhat is dagster built with?

Only in dagster

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.
dagster1,373,416 lines written3,347 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.
dagster1.4% of its commits signed by AIWith Claude Code, Gemini CLI, and Aider
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.
dagsterLast push November 7, 202628,090 commits16,376 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.
dagster2,682 test files15.3% 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, dagster or llama_index?
dagster, with 1,373,416 lines written; llama_index has 473,236.

The proof: dagster-io/dagster's code at commit 55208da

Which has more GitHub stars, dagster or llama_index?
llama_index, with 52,820 stars; dagster has 16,376.

The proof: run-llama/llama_index on GitHub

Which has more tests, dagster or llama_index?
dagster, with 2,682 test files; llama_index has 1,607.

The proof: dagster-io/dagster's code at commit 55208da

Which was updated more recently, dagster or llama_index?
dagster: its last push was on November 7, 2026, and llama_index's on November 5, 2026.

The proof: dagster-io/dagster's commits on GitHub

Which has more commits signed by AI, dagster or llama_index?
dagster: an AI signed 1.4% of its commits, with Claude Code, Gemini CLI, and Aider; in llama_index, 0.2%.

The proof: the commits each tool signed in dagster-io/dagster

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