{
  "id": 19313069,
  "title": "Anthropic unveils Claude Fable 5.2, Mythos 5.2 with coding gains and lower prices",
  "url": "https://urgent.news/2026/11/10/anthropic-unveils-claude-fable-5-2-mythos-5-2-with-coding-gains-and",
  "topic": "ai",
  "section": "AI",
  "published": "2026-11-10T09:35:38.000Z",
  "source": {
    "name": "Computerworld",
    "slug": "computerworld",
    "url": "https://www.computerworld.com/article/4246693/anthropic-unveils-claude-fable-5-2-mythos-5-2-with-coding-gains-and-lower-prices-2.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "Anthropic has released Claude Fable 5.2 and Mythos 5.2, with significant improvements in handling complex software engineering tasks and reduced API prices by 20% compared to the previous versions. Fable 5.2 and Mythos 5.2 share the same underlying model but have different safeguards, with Fable being broadly available and Mythos restricted to vetted cybersecurity and life sciences organizations. The models are priced at $8 per million input tokens and $40 per million output tokens, down from $10 and $50, respectively. The new versions can generate output up to 30% faster than their predecessors and have achieved coding benchmark scores comparable to Opus 5.5 at its highest setting, at roughly half the cost per task. While these improvements could make long-running AI agents viable for software migrations and scientific research, Anthropic also cautions that reliability challenges persist and that organizations will need to monitor agent activity and run these systems in isolated environments.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 5,
    "also_reported_by": [
      {
        "outlet": "TLDR",
        "title": "Fable 5.2 🤖, Anthropic IPO next week 💰, Storybook 11 👨💻",
        "url": "https://urgent.news/2026/11/10/fable-5-2-anthropic-ipo-next-week-storybook-11",
        "published": "2026-11-10T00:00:00.000Z"
      },
      {
        "outlet": "Economic Times Tech",
        "title": "Anthropic unveils new Fable, Mythos models as competition heats up ahead of IPO",
        "url": "https://urgent.news/2026/11/10/anthropic-unveils-new-fable-mythos-models-as-competition-heats-up",
        "published": "2026-11-10T02:45:31.000Z"
      },
      {
        "outlet": "Dawn",
        "title": "Anthropic unveils new Fable, Mythos models as competition heats up ahead of IPO",
        "url": "https://urgent.news/2026/11/10/anthropic-unveils-new-fable-mythos-models-as-competition-heats-up-19285229",
        "published": "2026-11-10T04:45:56.000Z"
      },
      {
        "outlet": "Free Press Journal",
        "title": "Anthropic Unveils Claude Fable 5.2 and Claude Mythos 5.2 For Advanced Coding, Cybersecurity",
        "url": "https://urgent.news/2026/11/10/anthropic-unveils-claude-fable-5-2-and-claude-mythos-5-2-for-advanced",
        "published": "2026-11-10T08:23:13.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}