opencode-openai-codex-auth
opencode-openai-codex-auth
Skill by ara.so — Codex Skills collection.
Overview
opencode-openai-codex-auth is a TypeScript-based OAuth authentication plugin that connects OpenCode to OpenAI's GPT-5.x and Codex models using your existing ChatGPT Plus/Pro subscription. It provides 22 pre-configured model presets with variant support, eliminating complex API setup while maintaining full model access.
Key Features:
- Official ChatGPT OAuth flow (no API keys required)
- 22 model presets across GPT-5.2, GPT-5.2-Codex, and GPT-5.1 families
- Variant system (none/low/medium/high/xhigh) for fine-grained control
- Automatic token refresh and usage-aware error handling
- Multimodal input support (text, images, files)
- Legacy OpenCode (v1.0.209-) and modern (v1.0.210+) compatibility
Installation
Quick Install (Recommended)
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