Anthropic发布Claude Fable 5.2和Mythos 5.2
Anthropic发布Claude Fable 5.2和Claude Mythos 5.2，称它们最适合处理雄心勃勃且开放式的技术工作。The Verge报道称，Fable 5.2已即时开放。定价为每百万输入token 8美元、每百万输出token 40美元。Anthropic表示，在预发布测试中，两款模型形式化证明了费马大定理，并解决了两个开放的黑洞物理问题。
此次发布新增了两款专注于高难度技术工作的模型；据报道，Fable 5.2已即时开放，并公布了token价格。Anthropic还报告了预发布测试中的数学和物理成果。
Today, we are announcing the availability of Claude Fable 5.2 and Claude Mythos 5.2 on Amazon Bedrock and Claude Platform on AWS. Claude Fable 5.2 is Anthropic’s most capable generally available model for technical work that raises the bar in coding and the sciences. Claude Mythos 5.2 is available through Anthropic’s verification programs for advanced work in cyber security and life sciences.
In this post, we cover what’s new in both models, why Fable 5.2 matters for your technical workloads, and how to get started building with the model on Amazon Bedrock.
Why Claude Fable 5.2
Fable 5.2 raises the bar on the hardest problems in coding, math, and science. It takes on ambiguous, multi-step work, verifies its own output, and can run unattended for hours to days. It interprets prompts, iterates, catches its own errors, and optimizes as it goes.
In Anthropic’s alignment testing, Mythos 5.2 hallucinates less, completes tasks more reliably, surfaces important information more consistently, and self-reports issues more honestly than Opus 5.5, Sonnet 5.5, and Mythos 5.1. Anthropic expects Fable 5.2 to behave similarly.