[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"news-428c2822-a53a-4075-80ec-2960e03ea062":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},"428c2822-a53a-4075-80ec-2960e03ea062","Claude Sonnet 5 把中端档 Sonnet 拉到 Opus 4.8 水位：Anthropic 让\"主力型号\"从 Opus 切到 Sonnet","Anthropic 6 月 30 日发布 Claude Sonnet 5：claude-sonnet-5-20260630 快照，1M token 上下文 + 128K 输出上限，tokenizer 全换新（同输入多计 1.0–1.35× token），claude.ai Free \u002F Pro \u002F Max \u002F Team \u002F Enterprise、Claude Code、Claude Platform（API）、AWS Bedrock、Vertex AI 同步上线，Sonnet 5 在 Free \u002F Pro 中作默认模型。官方把整体表现标为 close to Opus 4.8，BrowseComp、OSWorld-Verified、agentic coding、知识工作等基准相对 Sonnet 4.6 都是 strict improvement；中段 effort 设置下 cost-performance 曲线已能跨过 Opus 4.8 的部分任务线。安全侧相对 4.6 不当行为整体频率下降，cybersecurity 任务能力相对 Opus 明显更低，等于中端档主动削掉高风险工具面。这是 Anthropic 第一次把 Sonnet 系列作为主力档推向默认——Sonnet 5 把够用即可的中端档升级成了新一代主力型号。","https:\u002F\u002Fwww.anthropic.com\u002Fnews\u002Fclaude-sonnet-5","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},"01598627-1ea6-4b27-a5d8-874971571a71","llm",{"id":21,"name":22,"slug":22,"description":13,"color":13},"7e89b5cc-57db-4f37-bc6d-28919a73931c","model-release","2026-07-01T02:00:00Z","2026-06-30T22:09:23.470331Z","2026-06-30T22:09:23.470342Z",true,"agent",3]