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headroom vs rtk

headroom and rtk share 8 technologies: axum, rusqlite, SQLite, Tokio, tower, tiktoken-rs, tracing, and tracing-subscriber. headroom is written in Python and rtk in Rust.

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What they share and what sets them apart

headroomlabs-ai

headroom

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

Python78.9kRead on November 4, 2026, at commit 31dcaf4What is headroom built with?

Only in headroom

In common

rtk-ai

rtk

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

Rust85.6kRead on November 4, 2026, at commit b47e05bWhat is rtk built with?

Only in rtk

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
headroom789,601 lines written773 code files
rtk219,272 lines written253 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.
headroom28.1% of its commits signed by AIWith Claude Code, GitHub Copilot, Codex, Cursor, Devin, and Mistral Vibe
rtk33.7% of its commits signed by AIWith Claude Code, Codex, and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
headroomLast push November 4, 20263,201 commits78,851 stars
rtkLast push November 4, 20261,914 commits85,563 stars
TestsThe files that test the code, and the share of code files a test imports.
headroom1,220 test files68.2% of its code files have a test that imports them
rtk84 test files4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, headroom or rtk?
headroom, with 789,601 lines written; rtk has 219,272.

The proof: headroomlabs-ai/headroom's code at commit 31dcaf4

Which has more GitHub stars, headroom or rtk?
rtk, with 85,563 stars; headroom has 78,851.

The proof: rtk-ai/rtk on GitHub

Which has more tests, headroom or rtk?
headroom, with 1,220 test files; rtk has 84.

The proof: headroomlabs-ai/headroom's code at commit 31dcaf4

Which was updated more recently, headroom or rtk?
Both got their last push on November 4, 2026.

The proof: headroomlabs-ai/headroom's commits on GitHub

Which has more commits signed by AI, headroom or rtk?
rtk: an AI signed 33.7% of its commits, with Claude Code, Codex, and Cursor; in headroom, 28.1%.

The proof: the commits each tool signed in rtk-ai/rtk

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