aider vs marker

aider and marker share 9 technologies: Google, OpenAI, scikit-learn, torch, transformers, filetype, pillow, Pydantic, and psutil. Both are written in Python.

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What they share and what sets them apart

Aider-AI

aider

aider is AI pair programming in your terminal

Python50kRead on November 5, 2026, at commit 5dc9490What is aider built with?

Only in aider

In common

datalab-to

marker

Convert PDF to markdown + JSON quickly with high accuracy

Python40.8kRead on November 6, 2026, at commit 71dd5fdWhat is marker built with?

Only in marker

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
aider40,345 lines written80 code files
marker16,474 lines written121 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.
aider89.5% of its commits signed by AIWith Aider, Gemini CLI, Codex, and Claude Code
marker1% of its commits signed by AIWith Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
aiderLast push May 22, 202612,461 commits49,968 stars
markerLast push October 29, 20261,097 commits40,791 stars
TestsThe files that test the code, and the share of code files a test imports.
aider57 test files42.5% of its code files have a test that imports them
marker36 test files37.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, aider or marker?
aider, with 40,345 lines written; marker has 16,474.

The proof: Aider-AI/aider's code at commit 5dc9490

Which has more GitHub stars, aider or marker?
aider, with 49,968 stars; marker has 40,791.

The proof: Aider-AI/aider on GitHub

Which has more tests, aider or marker?
aider, with 57 test files; marker has 36.

The proof: Aider-AI/aider's code at commit 5dc9490

Which was updated more recently, aider or marker?
marker: its last push was on October 29, 2026, and aider's on May 22, 2026.

The proof: datalab-to/marker's commits on GitHub

Which has more commits signed by AI, aider or marker?
aider: an AI signed 89.5% of its commits, with Aider, Gemini CLI, Codex, and Claude Code; in marker, 1%.

The proof: the commits each tool signed in Aider-AI/aider

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