{
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  "event_id": "evt_0e8a1f4abf831db4",
  "url": "https://xiyu.news/events/evt_0e8a1f4abf831db4/",
  "json": "https://xiyu.news/api/events/evt_0e8a1f4abf831db4.json",
  "type": "product_release",
  "status": "developing",
  "category": "technology",
  "title": {
    "zh": "Anthropic 发布 Claude Sonnet 5.5 及系统卡",
    "en": "Anthropic releases Claude Sonnet 5.5 and its system card"
  },
  "current_state": {
    "zh": "Sonnet 5.5 已发布，并成为首个配备防「推理抽取」绑定与分类器的 Sonnet 模型。",
    "en": "Sonnet 5.5 has been released and is the first Sonnet model with anti-reasoning extraction account binding and a classifier."
  },
  "first_seen_at": "2026-09-28T19:47:24.035642+00:00",
  "last_updated_at": "2026-09-29T10:50:18.999471+00:00",
  "last_material_change_at": "2026-09-29T10:50:18.999471+00:00",
  "confidence": 0.75,
  "updates_count": 2,
  "sources_count": 4,
  "entities": [
    "anthropic",
    "card",
    "claude",
    "introducing",
    "sonnet",
    "sonnet-55",
    "system",
    "system-card"
  ],
  "identifiers": [],
  "topics": [
    "ai-api",
    "ai-labs",
    "ai-safety",
    "anthropic",
    "claude",
    "claude-sonnet",
    "developer-tooling",
    "foundation-models",
    "llm-pricing",
    "llm-release",
    "model-distillation",
    "model-release",
    "sonnet-55",
    "system-card"
  ],
  "updates": [
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      "update_id": "upd_5a205e264060bb09",
      "event_id": "evt_0e8a1f4abf831db4",
      "occurred_at": "2026-09-28T18:01:59Z",
      "published_at": "2026-09-28T18:01:59Z",
      "first_seen_at": "2026-09-28T19:47:24.035642Z",
      "time_precision": "published",
      "update_type": "initial",
      "material_change": true,
      "title_zh": "推出Claude Sonnet 5.5 - Anthropic",
      "title_en": "Introducing Claude Sonnet 5.5 - Anthropic",
      "what_changed_zh": "Anthropic宣布发布Claude Sonnet 5.5，这是其中端前沿模型系列的最新版本。",
      "what_changed_en": "Anthropic announced the release of Claude Sonnet 5.5, the latest iteration of its mid-tier frontier model family.",
      "current_state_zh": "Anthropic宣布发布Claude Sonnet 5.5，这是其中端前沿模型系列的最新版本。",
      "current_state_en": "Anthropic announced the release of Claude Sonnet 5.5, the latest iteration of its mid-tier frontier model family.",
      "detailed_summary_zh": "Anthropic announced the release of Claude Sonnet 5.5, the latest iteration of its mid-tier frontier model family.",
      "detailed_summary_en": "Anthropic announced the release of Claude Sonnet 5.5, the latest iteration of its mid-tier frontier model family.",
      "background_zh": "",
      "background_en": "",
      "community_discussion_zh": "",
      "community_discussion_en": "",
      "market_impact_zh": "",
      "market_impact_en": "",
      "importance_score": 7.5,
      "references": [],
      "confidence": 0.75,
      "story_ids": [
        "rss:news.google.com_rss_search?q=site:anthropic.com+when:7d&hl=en-US&gl=US&ceid=US:en:238282b441d81e23",
        "rss:news.google.com_rss_search?q=site:anthropic.com+when:7d&hl=en-US&gl=US&ceid=US:en:01cf27cad0cc3165",
        "rss:techcrunch.com_category_artificial-intelligence_feed_:e4bd6b8d0c822cc8"
      ],
      "sources": [
        {
          "url": "https://news.google.com/rss/articles/CBMiVkFVX3lxTE9QeW1PdlZjMmdtNW5PQm94Nm1mN09LVFB1bk8zOE1fdTRhOG1nMUt4YnhPd0V5ZVNCWklyN0pGT29Uc2lxR3NZZjc0dG5ZaTB0dFBQNHZ3?oc=5",
          "label": "Anthropic News",
          "source_type": "rss",
          "official": false
        },
        {
          "url": "https://news.google.com/rss/articles/CBMiZkFVX3lxTE9qV0J6eHRjNVU4N0s5TXVvN3Q1NUZ1SWt6a0dZLW9pcFppU0VhbmpFVS1NRzRTZGpyXzJseDI0S2JmcVlrTDEwUHRDSlRxYXNMNEQwUXE3TUpyTEVQT2w5RDM0RENpdw?oc=5",
          "label": "Anthropic News",
          "source_type": "rss",
          "official": false
        },
        {
          "url": "https://techcrunch.com/2026/09/28/anthropic-releases-sonnet-5-5-which-it-calls-a-significantly-cheaper-faster-work-partner/",
          "label": "TechCrunch AI",
          "source_type": "rss",
          "official": false
        }
      ]
    },
    {
      "update_id": "upd_15b0bfca1656b11f",
      "event_id": "evt_0e8a1f4abf831db4",
      "occurred_at": "2026-09-29T06:55:02Z",
      "published_at": "2026-09-29T06:55:02Z",
      "first_seen_at": "2026-09-29T10:50:18.999471Z",
      "time_precision": "published",
      "update_type": "escalation",
      "material_change": true,
      "title_zh": "Sonnet 5.5成首个防「推理抽取」的Sonnet：内部思考开始绑定账号",
      "title_en": "Sonnet 5.5成首个防「推理抽取」的Sonnet：内部思考开始绑定账号",
      "what_changed_zh": "Anthropic 为 Sonnet 5.5 增加了防「推理抽取」保护措施：生成的 thinking block 会绑定到原账号或组织，并加入分类器检测大规模套取推理用于蒸馏的行为。",
      "what_changed_en": "Anthropic added anti-reasoning extraction safeguards to Sonnet 5.5: generated thinking blocks are bound to the originating account or organization, and a classifier detects large-scale harvesting of reasoning for distillation.",
      "current_state_zh": "Sonnet 5.5 已发布，并成为首个配备防「推理抽取」绑定与分类器的 Sonnet 模型。",
      "current_state_en": "Sonnet 5.5 has been released and is the first Sonnet model with anti-reasoning extraction account binding and a classifier.",
      "detailed_summary_zh": "Anthropic has made Sonnet 5.5 its first Sonnet with anti-\"reasoning extraction\" safeguards, binding generated thinking blocks to the originating account or organization and adding a classifier that detects large-scale harvesting of Claude reasoning for training rival models.",
      "detailed_summary_en": "Anthropic has made Sonnet 5.5 its first Sonnet with anti-\"reasoning extraction\" safeguards, binding generated thinking blocks to the originating account or organization and adding a classifier that detects large-scale harvesting of Claude reasoning for training rival models.",
      "background_zh": "",
      "background_en": "",
      "community_discussion_zh": "",
      "community_discussion_en": "",
      "market_impact_zh": "",
      "market_impact_en": "",
      "importance_score": 7.0,
      "references": [],
      "confidence": 0.9,
      "story_ids": [
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      ],
      "sources": [
        {
          "url": "https://m.theblockbeats.info/flash/369512?from=telegram",
          "label": "theblockbeats",
          "source_type": "telegram",
          "official": false
        }
      ]
    }
  ]
}
