Anthropic 发布 Claude Fable 5.2 与 Mythos 5.2：同一模型，两套安全等级
Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different Safeguards
Anthropic 把一个模型拆成 Fable 和 Mythos 两档安全等级来卖，不用再为合规单独换模型。49.1% 的 FrontierCode 2.0 成绩加上 1M 上下文，做长文档和代码库的团队可以直接对比 OpenAI 和 Google 同价位方案再决定。
Anthropic 发布 Claude Fable 5.2 和 Claude Mythos 5.2，两者基于同一底层模型，区别在于安全防护级别：企业可按场景选择更宽松或更严格的安全策略，而不必切换到不同模型。
Fable 5.2 在 FrontierCode 2.0 基准上得分 49.1%，定价为每百万 tokens 输入 8 美元、输出 40 美元，并配备 1M-token 的上下文窗口，面向长文档和大型代码库场景。
这种"一模型、多防护"的发布方式意味着团队无需为合规和开发效率分别采购两个不同模型，降低了运维和评估成本，也为其他厂商的安全分级产品策略提供了参照。
Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different Safeguards
Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, one model with two safeguard levels. Fable 5.2 scores 49.1% on FrontierCode 2.0, costs $8/$40 per million tokens, and ships with a 1M-token context window. The post Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different Safeguards appeared first on MarkTechPost .
This report is categorized under AITOP's "Models" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to US-China foundation model benchmarks and commercialization comparison and AI developer toolchains, coding agents, and engineering workflows. Key entities and technical topics under continuous tracking include Claude, Anthropic, 推理模型, 编程助手.
Primary source verification: published directly by marktechpost with first-party authority. Cross-source corroboration: 11 independent sources have covered this development (including 宝玉, Artificial Analysis, kimmonismus), confirming industry-wide signal strength.
