❯ /vs codex▊
PoopRusteek vs Codex CLI
OpenAI’s Codex CLI and PoopRusteek are closer than most pairs: both open source, both written in Rust, both terminal-first. The difference is what powers them and what you get around the loop.
- Codex CLI (Apache-2.0) uses your ChatGPT plan — Free through Enterprise, within that plan’s usage limits — or OpenAI API billing. PoopRusteek uses a free DeepSeek web session.
- Both are Rust programs in the terminal, both read AGENTS.md, both install with a one-line script.
- Codex brings OpenAI’s models and first-party integration. PoopRusteek is multi-provider and adds a GOAL loop, offline RAG and a local OpenAI-compatible server.
── side by side
PoopRusteek · Codex CLI
| feature | PoopRusteek | Codex CLI |
|---|---|---|
| Price | $0 — a free DeepSeek web session | Included in ChatGPT plans within their usage limits, or OpenAI API billing |
| Licence | MIT | Apache-2.0 |
| Written in | Rust | Rust |
| Models | DeepSeek by default; OpenAI-compatible, Anthropic, Gemini via /providers | OpenAI |
| Project instructions | AGENTS.md, CLAUDE.md, GEMINI.md, POOPRUSTEEK.md | AGENTS.md |
| Platforms | Windows, macOS (Apple Silicon), Linux | macOS, Linux, Windows |
| Install | Windows installer; curl | sh on macOS and Linux | curl | sh, PowerShell, npm, Homebrew, binaries |
── what carries over
Your setup comes with you
- ⇄A Rust binary with a terminal interface and a one-line installer
- ⇄AGENTS.md project instructions, read automatically
- ⇄An agent that edits files and runs commands behind approvals
- ⇄Open source you can read before you run it
── what’s different
Where they part ways
- The bill
- Codex is included even in ChatGPT Free, but inside usage limits that paid plans raise; beyond them it is API billing. PoopRusteek’s default backend has no plan at all — its ceiling is whatever DeepSeek’s web chat allows.
- The model
- Codex runs OpenAI’s models. PoopRusteek defaults to DeepSeek and can switch to any OpenAI-compatible, Anthropic or Gemini endpoint from a panel.
- The extras
- PoopRusteek adds parallel chats, a GOAL loop with an evaluator agent, offline RAG over skills, tools and history, and /serve — a local OpenAI-compatible API.
- The fine print
- DeepSeek’s web API is unofficial and can change without notice. Codex is OpenAI’s own supported tool.
── which one
Which one should you use?
pick PoopRusteek if
- ✓you don’t have — or don’t want to watch the limits of — a ChatGPT plan
- ✓you want to switch between providers without switching tools
- ✓you want an iterate-until-done GOAL loop or offline RAG
- ✓you want a free OpenAI-compatible endpoint for your other tools
pick Codex CLI if
- ✗you already pay for ChatGPT and want OpenAI’s models
- ✗you want first-party support from the model vendor
- ✗you need it on an Intel Mac
- ✗your policies rule out unofficial APIs
── switching
Moving over in three steps
01
Install PoopRusteek: one file on Windows, one line on macOS and Linux.
02
Start it in your repository — AGENTS.md is picked up exactly as Codex reads it.
03
Paste your DeepSeek session token when onboarding asks, or add an OpenAI endpoint with /providers and your API key.
Prebuilt for Windows, macOS and Linuxall builds & checksums →
Sources: openai/codex on GitHub · Codex pricing and plans · AGENTS.md in Codex
Codex CLI is a product of OpenAI. PoopRusteek is an independent open-source project, not affiliated with or endorsed by OpenAI. Facts about Codex CLI were checked on 14 September 2026.
PoopRusteek vs Claude Code →PoopRusteek vs Gemini CLI →/alternatives →