> For the complete documentation index, see [llms.txt](https://befriends.gitbook.io/free-vpn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://befriends.gitbook.io/free-vpn/ai.md).

# 海外 AI 工具合集

- [ChatGPT 注册与使用教程](https://befriends.gitbook.io/free-vpn/ai/chatgptregister.md)
- [OpenAI Codex / ChatGPT 教程](https://befriends.gitbook.io/free-vpn/ai/codex.md)
- [Claude 注册与使用教程](https://befriends.gitbook.io/free-vpn/ai/claude.md)
- [Google Gemini 注册与使用教程](https://befriends.gitbook.io/free-vpn/ai/gemini.md)
- [AI 提示词 (Prompts) 使用教程](https://befriends.gitbook.io/free-vpn/ai/prompts.md)