{
  "schemaVersion": "bitshovel-editorial-review-v1",
  "id": "aihot-aihot-virxact-com-items-cmtj04igz04xproel00pt2oj-sources-20260905",
  "signalId": "aihot-aihot-virxact-com-items-cmtj04igz04xproel00pt2oj",
  "originalUrl": "https://platform.claude.com/docs/en/release-notes/overview",
  "reviewedAt": "2026-09-05T07:51:47.784Z",
  "kind": "editorial-correction",
  "note": {
    "zh": "将来源中的“交叉核对”表述改为转述路径，并为发布转述与使用背景注明范围；AA 动态页面不能回溯证明旧时点数值。",
    "en": "Corrects the source attribution from cross-checking to a relay path and distinguishes release coverage from usage context. AA’s live page cannot retrospectively establish the earlier numeric observation."
  },
  "before": {
    "id": "aihot-aihot-virxact-com-items-cmtj04igz04xproel00pt2oj",
    "state": "new",
    "lane": "platformShift",
    "publishedAt": "2026-09-01T00:00:00.000Z",
    "observedAt": "2026-09-01T22:00:44.699Z",
    "originalUrl": "https://platform.claude.com/docs/en/release-notes/overview",
    "relatedSources": [
      {
        "label": {
          "zh": "AIHOT 精选（发现源）",
          "en": "AIHOT featured (discovery)"
        },
        "url": "https://aihot.virxact.com/items/cmtj04igz04xproel00pt2oju"
      },
      {
        "label": {
          "zh": "AlphaSignal",
          "en": "AlphaSignal"
        },
        "url": "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more"
      },
      {
        "label": {
          "zh": "Artificial Analysis",
          "en": "Artificial Analysis"
        },
        "url": "https://artificialanalysis.ai/models/claude-fable-5-1"
      },
      {
        "label": {
          "zh": "Simon Willison 博客",
          "en": "Simon Willison's weblog"
        },
        "url": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/"
      }
    ],
    "source": {
      "zh": "Claude 官方发布说明原文，经 AIHOT 精选与 AlphaSignal 交叉进入视野",
      "en": "Official Claude release notes, surfaced via AIHOT and cross-checked with AlphaSignal"
    },
    "title": {
      "zh": "Claude Fable 5.1 发布：AA 智能指数登顶，缓存读降至输入价 2.5%",
      "en": "Claude Fable 5.1 tops the AA index; cache reads cut to 2.5% of input"
    },
    "summary": {
      "zh": "Anthropic 发布 Claude Fable 5.1——长程 agentic 编码、知识工作与研究场景的 Fable 5 继任者，同日为 Project Glasswing 参与者发布 Mythos 5.1。默认 1M token 上下文、128k 最大输出、常开自适应思维；定价 $10/$50 每 MTok 与 Fable 5 持平，提示缓存读降至 $0.25/MTok（输入价 0.025×，其余模型为 0.1×）。已上线 Claude API、Bedrock、AWS、Google Cloud、Microsoft Foundry，并登陆 OpenRouter（实价逐项核对一致）。第三方 Artificial Analysis 榜：智能指数 66、列 #1/192（Fable 5 为 62、#6）；每指数任务成本 $3.69 对 $3.14（约 +18%）。",
      "en": "Anthropic shipped Claude Fable 5.1, successor to Fable 5 for long-running agentic coding, knowledge work, and research, alongside Mythos 5.1 for Project Glasswing participants. Defaults: 1M-token context, 128k max output, always-on adaptive thinking at $10/$50 per MTok with prompt-cache reads cut to $0.25/MTok (0.025x base input versus 0.1x elsewhere). Live on Claude API, Bedrock, AWS, Google Cloud, Microsoft Foundry, and OpenRouter at matching prices. Artificial Analysis now ranks it #1 of 192 (index 66 vs 62 for Fable 5); cost per index task is $3.69 vs $3.14, about 18% higher."
    },
    "why": {
      "zh": "前沿模型对比组 Anthropic Claude 族的版本线再进一步：一次发布同时给出能力（AA 榜登顶）、成本结构（缓存读 0.025×输入价）与生态可用性（五平台+OpenRouter 同价）三组可验证事实，是 agent 成本核算的即时刻度。",
      "en": "The Anthropic Claude line advances on three verifiable axes at once — capability (AA #1), cost structure (cache reads at 0.025x of input price), and availability (five platforms plus OpenRouter at identical prices) — an immediate calibration point for agent cost math."
    },
    "caveat": {
      "zh": "证据来源为 Anthropic 官方发布说明（厂商自述口径）与 Artificial Analysis 榜单页（第三方测量，BitShovel 于 2026-09-02 抓取核对），aihot 与 AlphaSignal 双聚合器同日交叉同报。约 +18% 的每任务成本按 AA 口径 $3.69 对 $3.14 计得，略低于聚合器标题四舍五入的 20%；AA 指数不是独立评测的替代，榜单热度也不是实际适用性的证明。",
      "en": "Evidence is Anthropic's official release notes (vendor's own account) plus the Artificial Analysis leaderboard (third-party measurement, fetched and checked by BitShovel on Sep 2, 2026), cross-reported the same day by aihot and AlphaSignal. The ~18% per-task delta is computed from AA's $3.69 vs $3.14, slightly under the 20% rounding in aggregator headlines. An index rank is not a substitute for independent evaluation, and leaderboard attention is not proof of fit."
    },
    "timeline": [
      {
        "date": {
          "zh": "9 月 2 日",
          "en": "Sep 2"
        },
        "datetime": "2026-09-01T22:00:44.699Z",
        "summary": {
          "zh": "进入 BitShovel 雷达：AIHOT 精选 收录时可见 50 条。",
          "en": "Entered the BitShovel radar: 50 entries visible on AIHOT featured at collection."
        },
        "source": {
          "zh": "AIHOT 精选 快照",
          "en": "AIHOT featured snapshot"
        }
      },
      {
        "date": {
          "zh": "9 月 2 日",
          "en": "Sep 2"
        },
        "datetime": "2026-09-01T23:57:28.000Z",
        "summary": {
          "zh": "新增同题佐证：Simon Willison 博客 于本观察窗收录同一故事（标题匹配）。",
          "en": "Corroboration added: Simon Willison's weblog carried the same story this window (title match)."
        },
        "source": {
          "zh": "Simon Willison 博客",
          "en": "Simon Willison's weblog"
        },
        "kind": "corroboration-added",
        "discoveredAt": "2026-09-04T05:24:28.145Z"
      }
    ],
    "followTarget": {
      "id": "discussion:platform-claude-com-release-notes-september-1-2026",
      "label": {
        "zh": "Claude Fable 5.1 官方发布说明",
        "en": "Official Claude Fable 5.1 release notes"
      },
      "scope": {
        "zh": "Fable 系列定价、能力或 API 行为的后续官方修订，以及 Mythos 5.1 的公开扩大",
        "en": "Official revisions to Fable-series pricing, capabilities, or API behavior, plus any public widening of Mythos 5.1"
      },
      "url": "https://platform.claude.com/docs/en/release-notes/overview",
      "updateMode": "verified-change"
    },
    "ingestion": {
      "mode": "editorial",
      "adapter": "syndication-feed",
      "evidenceClass": "official-statement",
      "observationRef": "source-observations/history/syndication-feeds.2026-09-01T22-00-44Z.snapshot.json#feed:aihot-featured",
      "changeRef": "source-observations/history/syndication-feed-changes.2026-09-01T22-00-44Z.snapshot.json#feed:aihot-featured"
    },
    "managedObjectId": "model-version:claude-fable-5-1",
    "banner": {
      "url": "/card-art/anthropic-claude-fable-5-1-official.jpg",
      "credit": "Artificial Analysis",
      "license": "© Artificial Analysis - benchmark chart, editorial use with attribution"
    },
    "verifiedAt": "2026-09-04T16:00:18.920Z",
    "editorialReview": {
      "id": "aihot-aihot-virxact-com-items-cmtj04igz04xproel00pt2oj-review-20260905",
      "reviewedAt": "2026-09-05T07:10:46.661Z",
      "kind": "evidence-review",
      "note": {
        "zh": "来源核验：Simon Willison 的文章属于 Claude Fable 5.1 发布后的使用实测补充，予以保留；它不直接证明 AA 榜首或缓存读取价为输入价 2.5% 的结论，这两项应分别核对测量机构与官方说明。",
        "en": "Source review: Simon Willison’s article is a hands-on follow-up to the Claude Fable 5.1 release and remains linked. It does not directly establish the AA lead or the 2.5% cache-read price; those claims rely on the measurement source and official documentation respectively."
      },
      "sources": [
        {
          "label": {
            "zh": "Simon Willison：该版本实测背景",
            "en": "Simon Willison: release and hands-on background"
          },
          "url": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/"
        }
      ]
    }
  },
  "after": {
    "source": {
      "zh": "Claude 官方发布说明原文，经 AIHOT 与 AlphaSignal 转述进入视野",
      "en": "Official Claude release notes, surfaced via AIHOT and AlphaSignal"
    }
  },
  "withdrawnSources": [],
  "withdrawnTimeline": [],
  "sourceAssessments": [
    {
      "url": "https://aihot.virxact.com/items/cmtj04igz04xproel00pt2oju",
      "role": "relay",
      "scope": {
        "zh": "收录并链接 9 月 1 日的 Claude 官方版本说明。",
        "en": "Carries and links to the September 1 Claude release notes."
      },
      "limitations": {
        "zh": "证明官方发布内容被收录，不独立证明基准排名、定价或使用效果。",
        "en": "Establishes coverage of the official release, not independent verification of benchmarks, pricing, or practical results."
      },
      "evidenceUrls": [
        "https://aihot.virxact.com/items/cmtj04igz04xproel00pt2oju"
      ]
    },
    {
      "url": "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more",
      "role": "relay",
      "scope": {
        "zh": "同题报道的留存条目指向 AA 的 Claude Fable 5.1 测量页。",
        "en": "The retained same-topic news entry points to AA’s Claude Fable 5.1 measurement page."
      },
      "limitations": {
        "zh": "属于对测量结果的转述；标题中的 20% 不能替代 AA 的原始口径和当时数据。",
        "en": "This relays a measurement source. The headline’s 20% is not a substitute for AA’s methodology and contemporaneous data."
      },
      "evidenceUrls": [
        "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more"
      ]
    },
    {
      "url": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/",
      "role": "background",
      "scope": {
        "zh": "提供作者在该版本上生成动画和 SVG 的使用实例。",
        "en": "Provides the author’s hands-on examples of animation and SVG generation with this version."
      },
      "limitations": {
        "zh": "单个作者的案例不支持 AA 榜首、缓存价格或普遍效率优势。",
        "en": "One author’s examples do not establish AA leadership, cache pricing, or general productivity gains."
      },
      "evidenceUrls": [
        "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/"
      ]
    }
  ],
  "evidence": [
    {
      "type": "retained-feed-entry",
      "label": {
        "zh": "AIHOT：Claude 官方发布条目",
        "en": "AIHOT: retained Claude release entry"
      },
      "url": "https://aihot.virxact.com/items/cmtj04igz04xproel00pt2oju",
      "path": "app/_content/editorial-reviews/evidence/r127-claude-aihot-feed-entry.json",
      "sha256": "71fdb552cf8e8e0ede8b8609e0f3959755f698e12176afbd6d52d2d8b4780668",
      "bytes": 756,
      "fetchedAt": "2026-09-01T22:00:44.699Z",
      "retainedRecord": {
        "sourceSnapshot": "app/_content/source-observations/history/syndication-feeds.2026-09-01T22-00-44Z.snapshot.json",
        "sourceSnapshotSha256": "74827a3d7e1781b51304d6f97846d2c147cbef1498932e2078d2c56df7c35593",
        "observedAt": "2026-09-01T22:00:44.699Z",
        "feedSourceKey": "feed:aihot-featured",
        "entry": {
          "id": "cmtj04igz04xproel00pt2oju",
          "title": "Anthropic 发布 Claude Fable 5.1 与 Claude Mythos 5.1",
          "url": "https://aihot.virxact.com/items/cmtj04igz04xproel00pt2oju",
          "externalUrl": "https://platform.claude.com/docs/en/release-notes/overview#september-1-2026",
          "publishedAt": "2026-09-01T00:00:00.000Z",
          "updatedAt": null,
          "author": "noreply@aihot.virxact.com (Claude Platform:开发者版本说明(RSS))"
        }
      }
    },
    {
      "type": "retained-feed-entry",
      "label": {
        "zh": "AlphaSignal：转引 AA 的收录条目",
        "en": "AlphaSignal: retained entry linking to AA"
      },
      "url": "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more",
      "path": "app/_content/editorial-reviews/evidence/r127-claude-alphasignal-feed-entry.json",
      "sha256": "8b8ef34929604c0094a77ee16c436d886297b61e43a32d4b0aa4637269aa5add",
      "bytes": 828,
      "fetchedAt": "2026-09-01T22:00:44.699Z",
      "retainedRecord": {
        "sourceSnapshot": "app/_content/source-observations/history/syndication-feeds.2026-09-01T22-00-44Z.snapshot.json",
        "sourceSnapshotSha256": "74827a3d7e1781b51304d6f97846d2c147cbef1498932e2078d2c56df7c35593",
        "observedAt": "2026-09-01T22:00:44.699Z",
        "feedSourceKey": "feed:alphasignal-daily",
        "entry": {
          "id": "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more",
          "title": "Anthropic's Claude Fable 5.1 Tops Every Frontier Model but Costs 20% More",
          "url": "https://alphasignal.ai/news/anthropic-s-claude-fable-5-1-tops-every-frontier-model-but-costs-20-more",
          "publishedAt": "2026-09-01T20:12:46.000Z",
          "updatedAt": null,
          "author": "AlphaSignal Newsroom",
          "externalUrl": "https://artificialanalysis.ai/models/claude-fable-5-1"
        }
      }
    },
    {
      "type": "retained-feed-entry",
      "label": {
        "zh": "Simon Willison：该版本实测背景",
        "en": "Simon Willison: release and hands-on background"
      },
      "url": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/",
      "path": "app/_content/editorial-reviews/evidence/claude-background-feed-entry.json",
      "sha256": "2b0ed607d0b706c75809b47e652ce31c3b86ae4309e1cfb606e2bb70be3eaec3",
      "bytes": 658,
      "fetchedAt": "2026-09-04T04:49:10.643Z",
      "retainedRecord": {
        "sourceSnapshot": "app/_content/source-observations/history/syndication-feeds.2026-09-04T04-49-10Z.snapshot.json",
        "sourceSnapshotSha256": "5ba4b5cab591ecf25f973e4ccdb77e2a644b5d166d656c61e3a7e300e69c4cc5",
        "observedAt": "2026-09-04T04:49:10.643Z",
        "feedSourceKey": "feed:simon-willison-entries",
        "entry": {
          "id": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/",
          "title": "Claude Fable 5.1 made me a really nice animated pelican",
          "url": "https://simonwillison.net/2026/Sep/1/claude-fable-5-1/",
          "publishedAt": "2026-09-01T23:57:28.000Z",
          "updatedAt": "2026-09-01T23:57:28.000Z",
          "author": "Simon Willison"
        }
      }
    }
  ],
  "limitations": [
    {
      "zh": "AA 暂留 unreviewed：未定位 9 月 2 日精确结果的留存正文；当前页面的指数版本与数值已不同，不能据此断言旧值错误或替换旧值。",
      "en": "AA remains unreviewed: the exact September 2 result body was not located. Its current index version and values differ, which does not establish that the earlier figures were wrong or justify replacing them."
    }
  ],
  "integrity": "08ccd555ef545653b7b6e43d24a1d8900a97dda693e6b4706542788d3ee892a9"
}