{"slug": "new-model-claude-fable-5-1-anthropic", "title": "New model: Claude Fable 5.1 (Anthropic)", "summary": "Anthropic released Claude Fable 5.1 on September 1, 2026, a multimodal model supporting text, image, and PDF inputs with a 1000k context window and 128k maximum output. The model is available under the identifiers claude-fable-5-1, anthropic/claude-fable-5-1, and microsoft/claude-fable-5-1, with no retirement date announced.", "body_md": "AN● Healthy\n\n# Claude Fable 5.1\n\nAnthropic · claude-fable-5-1\n\nReleased2026-09-01\n\nRetiresno announced date\n\nclaude-fabletext+image+pdf1000k context128k max out\n\nalso matches:\n\n`claude-fable-5-1`\n\n`anthropic/claude-fable-5-1`\n\n`microsoft/claude-fable-5-1`\n\n[provider announcement →](https://models.dev/anthropic/claude-fable-5-1)\n\nDoes your code call Claude Fable 5.1?\n\n$ curl -fsSL https://llmstatus.ai/install.sh | bash\n\nThen `mm status`\n\nin any repo — it finds every model you use and flags the ones on a clock. No account, nothing uploaded.\n\n[Get alerted before it retires →](https://llmstatus.ai/sign-up)", "url": "https://wpnews.pro/news/new-model-claude-fable-5-1-anthropic", "canonical_source": "https://llmstatus.ai/m/anthropic/anthropic/claude-fable-5-1", "published_at": "2026-09-02 00:00:11+00:00", "updated_at": "2026-09-03 17:24:23.313131+00:00", "lang": "en", "topics": ["large-language-models", "generative-ai", "ai-products"], "entities": ["Anthropic", "Claude Fable 5.1", "Microsoft"], "alternates": {"html": "https://wpnews.pro/news/new-model-claude-fable-5-1-anthropic", "markdown": "https://wpnews.pro/news/new-model-claude-fable-5-1-anthropic.md", "text": "https://wpnews.pro/news/new-model-claude-fable-5-1-anthropic.txt", "jsonld": "https://wpnews.pro/news/new-model-claude-fable-5-1-anthropic.jsonld"}}