Source: https://seerepo.com/compare/Automattic/harper/vs/tinyhumansai/openhuman
Markdown source: https://seerepo.com/compare/Automattic/harper/vs/tinyhumansai/openhuman.md
Description: harper and openhuman share 10 technologies: Tokio, Tauri, @tauri-apps/api, objc2-app-kit, objc2-foundation, React, zip, tracing, tracing-subscriber, and Tailwind CSS. Both are written in Rust.

# harper vs openhuman

harper and openhuman share 10 technologies: Tokio, Tauri, @tauri-apps/api, objc2-app-kit, objc2-foundation, React, zip, tracing, tracing-subscriber, and Tailwind CSS. Both are written in Rust.

- [Automattic/harper](https://seerepo.com/r/Automattic/harper): Offline, privacy-first grammar checker. Fast, open-source, Rust-powered
- [tinyhumansai/openhuman](https://seerepo.com/r/tinyhumansai/openhuman): The fastest, cheapest, most efficient open-source agent harness. Run more than 500 agents on a $10 VPS.

## What they share and what sets them apart

- In common: Tokio, Tauri, @tauri-apps/api, objc2-app-kit, objc2-foundation, React, zip, tracing, tracing-subscriber, Tailwind CSS
- Only in harper: cached, lru, SvelteKit, Svelte, egui, lru-cache, PostHog, pulldown-cmark, ammonia, Fastlane, tracing-wasm, winit, core-graphics, egui-wgpu, egui-winit, uiautomation, @fortawesome/free-solid-svg-icons, quill, marked, Font Awesome, CodeMirror, @docsearch/css, Chart.js, @docsearch/js, brace, typed.js, Drizzle, drizzle-zod
- Only in openhuman: axum, rusqlite, SQLite, Sentry, Vite, react-router-dom, @assistant-ui/core, crossterm, Ratatui, rfd, tauri-plugin-notification, objc2-user-notifications, objc2-web-kit, hmac, keyring, schemars, jsonschema, log, env_logger, tracing-appender, tracing-log, class-variance-authority, tailwind-merge, Radix UI, Base UI, xyflow, cmdk, react-joyride, @rive-app/react-webgl2, recharts, @assistant-ui/react-markdown, three, Lucide, react-icons, @assistant-ui/react, remark-gfm, qrcode.react, react-markdown, rehype-highlight, rehype-katex, remark-math, katex

## Side by side

| | harper | openhuman |
|---|---|---|
| Size | 180,779 lines written, 944 code files | 1,431,214 lines written, 3,204 code files |
| Who writes it | 0.5% of its commits signed by AI. With Claude Code and Mistral Vibe | 1.7% of its commits signed by AI. With Claude Code, Codex, Cursor, Jules, CodeRabbit, and GitHub Copilot |
| Activity | Last push November 6, 2026, 4,193 commits, 17,449 stars | Last push November 5, 2026, 53,726 commits, 42,563 stars |
| Tests | 112 test files. 1.6% of its code files have a test that imports them | 2,996 test files. 75.2% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, harper or openhuman?

openhuman, with 1,431,214 lines written; harper has 180,779.

The proof: [tinyhumansai/openhuman's code at commit 6043171](https://github.com/tinyhumansai/openhuman/tree/60431719028e91641d7ea2e08bd1c9ed469ff6a2)

### Which has more GitHub stars, harper or openhuman?

openhuman, with 42,563 stars; harper has 17,449.

The proof: [tinyhumansai/openhuman on GitHub](https://github.com/tinyhumansai/openhuman)

### Which has more tests, harper or openhuman?

openhuman, with 2,996 test files; harper has 112.

The proof: [tinyhumansai/openhuman's code at commit 6043171](https://github.com/tinyhumansai/openhuman/tree/60431719028e91641d7ea2e08bd1c9ed469ff6a2)

### Which was updated more recently, harper or openhuman?

harper: its last push was on November 6, 2026, and openhuman's on November 5, 2026.

The proof: [Automattic/harper's commits on GitHub](https://github.com/Automattic/harper/commits)

### Which has more commits signed by AI, harper or openhuman?

openhuman: an AI signed 1.7% of its commits, with Claude Code, Codex, Cursor, Jules, CodeRabbit, and GitHub Copilot; in harper, 0.5%.

The proof: [the commits each tool signed in tinyhumansai/openhuman](https://seerepo.com/r/tinyhumansai/openhuman/ai)

## Sources

- Automattic/harper: Read on November 6, 2026, at commit d52aeac (https://github.com/Automattic/harper/tree/d52aeac0a6de1cdb030b231705ab7e7e4e12e197)
- tinyhumansai/openhuman: Read on November 6, 2026, at commit 6043171 (https://github.com/tinyhumansai/openhuman/tree/60431719028e91641d7ea2e08bd1c9ed469ff6a2)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.