Anthropic 发布 Claude Fable 5.2 与 Mythos 5.2，附高效使用技巧
Anthropic 刚发了 Fable 5.2 和 Mythos 5.2 两个模型，作者还附了实操建议：让它先挑毛病再干活、日常用中档 effort 省算力、整项目托管跑几小时。做长任务的工程师可以直接照抄这套用法。
Alex Albert 发推介绍 Claude Fable 5.2，称其在大型开放式任务上的表现明显超过 Opus 5.5。同一条推文中，Anthropic 官方宣布推出 Claude Fable 5.2 与 Claude Mythos 5.2 两款新模型，定位于攻坚难度最高的技术挑战，在编程、推理和视觉等方向有提升。
推文给出了四条具体用法：先让模型指出你的想法有什么问题再动手，它擅长头脑风暴且会提出反驳；日常从中/高档 effort 起步，把 xhigh 留给最难的题目；开工前明确哪些操作需要你审批（如删除文件），其余交给它自主决定；把整个项目一次性交给它并让它连续运行数小时，这是它最强的使用场景。
对开发者而言，Fable 5.2 的定位是长时间自主工作的协作型模型，与 Opus 5.5 形成明显的产品分层：前者面向开放式大项目，后者仍是通用旗舰。预算敏感的用户可参考 effort 分级建议来控制成本。
I really love using Fable 5.2. On big, open-ended work it feels like a major step above Opus 5.5. A few tips for getting the most out of it: - Ask what’s wrong with your idea before it builds anything. It’s great at brainstorming and will push back - Start on med/high effort, and save xhigh for hardest problems - Tell it up front what needs your approval (e.g. deleting things) and that the rest is its call - Give it a whole project instead of a next step and let it run for hours. This is where it shines Claude @claudeai Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges. They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.
This report is categorized under AITOP's "How-to" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to AI developer toolchains, coding agents, and engineering workflows and US-China foundation model benchmarks and commercialization comparison. Key entities and technical topics under continuous tracking include Claude, Claude Fable 5.2, Anthropic, 提示词工程.
Source attribution: curated from Alex Albert (@alexalbert__).
