Fable 5.2 重夺全球最强 LLM 宝座，Anthropic IPO 路演启动
原标题：[AINews] Fable 5.2 retakes World #1 LLM spot as $ANT IPO roadshow begins
AI 摘要
Anthropic 发布 Claude Fable 5.2 与 Claude Mythos 5.2，在 Artificial Analysis Intelligence Index v5 上以 65 分重回全球第一，超过 Gemini 4 Carbon 的 60 分。新模型单 token 价格下调 20% 至每百万输入 8 美元、输出 40 美元，但因大量生成测试用例和子代理自检，单任务实际成本反而上升。模型默认使用 Medium 推理强度，订阅用户访问受限，且默认要求数据保留以运行安全分类器。
正文节选
On Friday, we asked Jamin Ball what comes next for Anthropic’s IPO. On Monday the roadshow started and Anthropic shipped the long-anticipated next-version of Claude Fable and Mythos. Of course, it is the new top model in the world, taking back Opus 5.5’s #1 spot from Gemini 4 Carbon which had its brief moment in the sun (10 days). Fable comes with a 20% per token price cut… but is more token hungry, as both SemiAnalysis GDPx and Artificial Analysis agree: Fable 5.1 cost $10 per million input tok