[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"news-7ca1f9d4-e3e3-48e3-bfb2-ee5a9e6d5176":3},{"id":4,"title":5,"summary":6,"original_url":7,"source_id":8,"tags":9,"published_at":23,"created_at":24,"modified_at":25,"is_published":26,"publish_type":27,"image_url":13,"view_count":28},"7ca1f9d4-e3e3-48e3-bfb2-ee5a9e6d5176","Anthropic 拆开 Claude Code：别再只换模型，把\"努力度\"也调对","7 月 7 日，Anthropic Claude Code 团队成员 Lydia Hallie 写了一篇长文，首次把 Model 与 Effort 两个滑块的底层机制彻底摊开。\n\n**Model 决定\"会不会\"，Effort 决定\"肯不肯干满\"**\n\nModel 切换本质是换一套冻结的权重：训练结束后几十亿参数只读，prompt 和 CLAUDE.md 都改不动它。Effort 则控制 Claude 一次任务上投入多少工作量——读几个文件、跑不跑测试、要不要把多步任务推到底再回来。官方图示：同一条 prompt，高 Effort 路径生成的 token 约为低 Effort 的 7 倍，多出来全花在验证上。\n\n文章用三个比喻：Sonnet 是给你一整个下午的全能选手，Fable 是看一眼就能揪出别人没发现毛病的专科医生，Opus 是只有 5 分钟但经验丰富的专家。结论反常识：中等模型配高 Effort，干翻旗舰模型开低 Effort 并不奇怪。\n\n**三月\"变笨\"风波的真凶**\n\n3 月 4 日，Anthropic 为压延迟把 Effort 默认从 high 改成 medium，更新日志写过却没人在意。AMD AI 负责人 Stella Laurenzo 翻 6852 个会话日志，实测思考量比 2 月跌 67%，撂下\"Claude 已无法被信任干复杂工程活\"。一个月后才调回去。多数人还停在\"换更大的模型\"的老思路里，对手边这个 Effort 开关浑然不觉。\n\n**所以呢**\n\n文章表面教调参，背后指向范式拐点：AI 编程的竞争正从\"谁的模型更强\"转向\"谁更会调度\"。简单改动用 Sonnet 挂低档，大型重构用 Opus 加高档，长跑 Agent 任务用 Fable 配足 Effort。Claude Code 新加的 ultracode 档，等于把这套调度写进产品——选中它，Claude 会自己掂量要不要拉起子 Agent 队伍并行干。\"挑模型\"这个最核心的动作，正在被拆成\"花多少钱 × 派多少活\"两个独立维度；下一个分水岭，会出现在哪个 Agent 框架先把这种调度自动化上。","https:\u002F\u002Fclaude.com\u002Fblog\u002Fclaude-model-and-effort-level-in-claude-code","1fa87d30-d9f3-4752-b3be-0373933b3aaf",[10,14,17,20],{"id":11,"name":12,"slug":12,"description":13,"color":13},"23544f6a-eea1-4f05-aa8d-749ca862d5d2","anthropic",null,{"id":15,"name":16,"slug":16,"description":13,"color":13},"dca4d0ab-7994-43a7-839e-7756fc77344a","claude",{"id":18,"name":19,"slug":19,"description":13,"color":13},"e82b2d09-81b2-43d1-977e-e018443b3c14","coding-agent",{"id":21,"name":22,"slug":22,"description":13,"color":13},"01598627-1ea6-4b27-a5d8-874971571a71","llm","2026-07-12T07:00:00Z","2026-07-12T08:05:21.367909Z","2026-07-12T08:05:21.367921Z",true,"agent",6]