{
  "@context": "https://schema.org",
  "@id": "https://aggr.aymericbeaumet.com/items/simonwillison-net/2026-09-02-llm-anthropic-0-28/#webpage",
  "@type": [
    "WebPage",
    "ArchiveComponent"
  ],
  "articleBody": "**Sponsored by:** Portnox — Shadow AI is the new shadow IT. On Sept. 10, Forrester Research and Portnox share practical steps to regain AI agent visibility, access management, and policy enforcement. [Register today](https://fandf.co/4y6wlc6)\n",
  "authors": [],
  "captured_at": "2026-09-08T10:17:10.166315+00:00",
  "category": "programming",
  "content_html": "<p><strong>Sponsored by:</strong> Portnox — Shadow AI is the new shadow IT. On Sept. 10, Forrester Research and Portnox share practical steps to regain AI agent visibility, access management, and policy enforcement. <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://fandf.co/4y6wlc6\">Register today</a></p>\n",
  "content_markdown": "**Sponsored by:** Portnox — Shadow AI is the new shadow IT. On Sept. 10, Forrester Research and Portnox share practical steps to regain AI agent visibility, access management, and policy enforcement. [Register today](https://fandf.co/4y6wlc6)\n",
  "dateCreated": "2026-09-08T10:17:10.166315+00:00",
  "date_created": "2026-09-02T17:59:32+00:00",
  "date_modified": "2026-09-02T17:59:32+00:00",
  "date_published": "2026-09-02T17:59:32+00:00",
  "description": "Release: llm-anthropic 0.28 Claude Fable 5.1, reasoning traces are now displayed by default for models that support them, plus a new llm_anthropic.ClaudeRefusal exception for when Claude throws a refusal. Tags: llm, anthropic, claude,…",
  "external_url": "https://simonwillison.net/2026/Sep/2/llm-anthropic/",
  "git": {
    "commit": "ebb0941c5c06a2ab2377342d607535262a3e969e",
    "path": "items/simonwillison-net/2026/09/2026-09-02-llm-anthropic-0-28.md",
    "permalink": "https://github.com/aymericbeaumet/aggr-instance/blob/ebb0941c5c06a2ab2377342d607535262a3e969e/items/simonwillison-net/2026/09/2026-09-02-llm-anthropic-0-28.md"
  },
  "id": "urn:aggr:item:0bc040037089cfe9ab5609612419241bcb8d90bd",
  "isBasedOn": {
    "@id": "https://simonwillison.net/2026/Sep/2/llm-anthropic/"
  },
  "mainEntity": {
    "@id": "https://simonwillison.net/2026/Sep/2/llm-anthropic/",
    "@type": "CreativeWork",
    "archivedAt": {
      "@id": "https://aggr.aymericbeaumet.com/items/simonwillison-net/2026-09-02-llm-anthropic-0-28/#webpage"
    },
    "dateModified": "2026-09-02T17:59:32+00:00",
    "datePublished": "2026-09-02T17:59:32+00:00",
    "headline": "llm-anthropic 0.28",
    "timeRequired": "PT1M",
    "url": "https://simonwillison.net/2026/Sep/2/llm-anthropic/",
    "wordCount": 32
  },
  "name": "Archived snapshot: llm-anthropic 0.28",
  "preview": null,
  "reading_minutes": 1,
  "replicated_at": null,
  "source": "simonwillison-net",
  "source_name": "Simon Willison's Weblog",
  "summary": "Release: llm-anthropic 0.28 Claude Fable 5.1, reasoning traces are now displayed by default for models that support them, plus a new llm_anthropic.ClaudeRefusal exception for when Claude throws a refusal. Tags: llm, anthropic, claude, claude-mythos-fable",
  "tags": [
    "anthropic",
    "claude",
    "claude-mythos-fable",
    "llm"
  ],
  "temporalCoverage": "2026-09-08T10:17:10.166315+00:00",
  "title": "llm-anthropic 0.28",
  "url": "https://aggr.aymericbeaumet.com/items/simonwillison-net/2026-09-02-llm-anthropic-0-28/",
  "word_count": 32
}