Reddit user shares link to Anthropic Claude Mythos 5 system card
English summary
A Reddit post by user EchoOfOppenheimer contains a link to Anthropic's system card for Claude Fable 5/Mythos 5. The body of the post offers no additional details beyond the link. The post's title claims Mythos 5 invented its own language during testing and then switched back to English, but this is not elaborated in the provided content.
Chinese summary
Reddit 用户 EchoOfOppenheimer 发布了一个帖子，内含 Anthropic 关于 Claude Fable 5/Mythos 5 的系统卡链接。帖子正文除链接外未提供任何额外细节。帖子标题声称 Mythos 5 在测试期间发明了自己的语言，随后切换回英语，但该内容未在正文中展开。
Key points
A Reddit user posted a link to Anthropic's official system card for Claude Fable 5/Mythos 5.
一位 Reddit 用户发布了 Anthropic 关于 Claude Fable 5/Mythos 5 的官方系统卡链接。
The post body contains no summary, excerpt, or verification of the claim made in the title.
帖子正文未包含对标题声明的摘要、摘录或验证。