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**Curated by [Numman Ali](https://x.com/nummanali)**
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**One install. Every Codex model.**
[Install](#-quick-start) · [Models](#-models) · [Configuration](#-configuration) · [Docs](#-docs)

---
## 💡 Philosophy
> **"One config. Every model."**
OpenCode should feel effortless. This plugin keeps the setup minimal while giving you full GPT‑5.x + Codex access via ChatGPT OAuth.
```
┌─────────────────────────────────────────────────────────┐
│                                                         │
│  ChatGPT OAuth → Codex backend → OpenCode               │
│  One command install, full model presets, done.         │
│                                                         │
└─────────────────────────────────────────────────────────┘
```
---
## 🚀 Quick Start
```bash
npx -y opencode-openai-codex-auth@latest
```
Then:
```bash
opencode auth login
opencode run "write hello world to test.txt" --model=openai/gpt-5.2 --variant=medium
```
Legacy OpenCode (v1.0.209 and below):
```bash
npx -y opencode-openai-codex-auth@latest --legacy
opencode run "write hello world to test.txt" --model=openai/gpt-5.2-medium
```
---
## 📦 Models
- **gpt-5.2** (none/low/medium/high/xhigh)
- **gpt-5.2-codex** (low/medium/high/xhigh)
- **gpt-5.1-codex-max** (low/medium/high/xhigh)
- **gpt-5.1-codex** (low/medium/high)
- **gpt-5.1-codex-mini** (medium/high)
- **gpt-5.1** (none/low/medium/high)
---
## 🧩 Configuration
- Modern (OpenCode v1.0.210+): `config/opencode-modern.json`
- Legacy (OpenCode v1.0.209 and below): `config/opencode-legacy.json`

Minimal configs are not supported for GPT‑5.x; use the full configs above.
---
## ✅ Features
- ChatGPT Plus/Pro OAuth authentication (official flow)
- 22 model presets across GPT‑5.2 / GPT‑5.2 Codex / GPT‑5.1 families
- Variant system support (v1.0.210+) + legacy presets
- Multimodal input enabled for all models
- Usage‑aware errors + automatic token refresh
---
## 📚 Docs
- Getting Started: `docs/getting-started.md`
- Configuration: `docs/configuration.md`
- Troubleshooting: `docs/troubleshooting.md`
- Architecture: `docs/development/ARCHITECTURE.md`
---
## ⚠️ Usage Notice
This plugin is for **personal development use** with your own ChatGPT Plus/Pro subscription.
For production or multi‑user applications, use the OpenAI Platform API.

**Built for developers who value simplicity.**