Source: https://seerepo.com/compare/openai/codex/vs/RightNow-AI/openfang
Markdown source: https://seerepo.com/compare/openai/codex/vs/RightNow-AI/openfang.md
Description: codex and openfang share 10 technologies: axum, SQLite, Tokio, tower, Ratatui, hmac, rmcp, zip, tracing, and tracing-subscriber. Both are written in Rust.

# codex vs openfang

codex and openfang share 10 technologies: axum, SQLite, Tokio, tower, Ratatui, hmac, rmcp, zip, tracing, and tracing-subscriber. Both are written in Rust.

- [openai/codex](https://seerepo.com/r/openai/codex): Lightweight coding agent that runs in your terminal
- [RightNow-AI/openfang](https://seerepo.com/r/RightNow-AI/openfang): Open-source Agent Operating System

## What they share and what sets them apart

- In common: axum, SQLite, Tokio, tower, Ratatui, hmac, rmcp, zip, tracing, tracing-subscriber
- Only in codex: lru, Sentry, objc2-app-kit, objc2-foundation, crossterm, keyring, png, image, pulldown-cmark, schemars, Pydantic, log, tracing-appender
- Only in openfang: Tauri, FastAPI, uvicorn, rusqlite, rumqttc, wasmtime, tauri-plugin-notification, tauri-plugin-dialog, argon2, ed25519-dalek, LangChain, langchain-ollama, langchain-openai, html-escape, imap, lettre, mailparse, roxmltree, qrcode, pino

## Side by side

| | codex | openfang |
|---|---|---|
| Size | 2,320,674 lines written, 4,216 code files | 215,772 lines written, 277 code files |
| Who writes it | 2.8% of its commits signed by AI. With Codex, Claude Code, and GitHub Copilot | 15.3% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Codex |
| Activity | Last push November 4, 2026, 13,099 commits, 133,103 stars | Last push July 2, 2026, 437 commits, 18,243 stars |
| Tests | 2,448 test files. 51.6% of its code files have a test that imports them | 14 test files |

- 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, codex or openfang?

codex, with 2,320,674 lines written; openfang has 215,772.

The proof: [openai/codex's code at commit 021fccb](https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)

### Which has more GitHub stars, codex or openfang?

codex, with 133,103 stars; openfang has 18,243.

The proof: [openai/codex on GitHub](https://github.com/openai/codex)

### Which has more tests, codex or openfang?

codex, with 2,448 test files; openfang has 14.

The proof: [openai/codex's code at commit 021fccb](https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)

### Which was updated more recently, codex or openfang?

codex: its last push was on November 4, 2026, and openfang's on July 2, 2026.

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

### Which has more commits signed by AI, codex or openfang?

openfang: an AI signed 15.3% of its commits, with Claude Code, GitHub Copilot, Cursor, and Codex; in codex, 2.8%.

The proof: [the commits each tool signed in RightNow-AI/openfang](https://seerepo.com/r/RightNow-AI/openfang/ai)

## Sources

- openai/codex: Read on November 4, 2026, at commit 021fccb (https://github.com/openai/codex/tree/021fccb046508938c4754982efccfb51d6e8356e)
- RightNow-AI/openfang: Read on November 6, 2026, at commit acf2587 (https://github.com/RightNow-AI/openfang/tree/acf2587e46be174c10200489c9a2d23a39a98aeb)

## 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.