{"slug": "new-model-available-claude-fable-5-1", "title": "New Model Available: Claude Fable 5.1", "summary": "Anthropic released Claude Fable 5.1, its latest model for demanding reasoning and long-horizon agentic work, featuring a 1M-token context window, adaptive thinking, and support for text and image inputs. The model is priced at $10 per million input tokens and $50 per million output tokens, with read and write speeds of 0.25 and 12.5-20 tokens per million respectively.", "body_md": "Claude Fable 5.1 is Anthropic’s latest model for demanding reasoning and long-horizon agentic work, with stronger performance in long-running coding, multistep research, and document, spreadsheet, and slide workflows. It supports text and image inputs, text output, a 1M-token context window, and adaptive thinking that is always on with effort-based steering.\n\n[Back to Models](https://zenmux.ai/models)\n\n## Providers\n\nRoute requests across multiple providers. Copy a provider slug to set your preference.\n\n**$10**\n\n*/ M tokens*\n\n**$50**\n\n*/ M tokens*\n\n*Read:*\n\n**0.25**/ M tokens\n\n*Write:*\n\n**12.5-20**/ M tokens1M4.36s38.9tps\n\n**$10**\n\n*/ M tokens*\n\n**$50**\n\n*/ M tokens*\n\n*Read:*\n\n**0.25**/ M tokens\n\n*Write:*\n\n**12.5-20**/ M tokens1M2.85s53.5tps\n\n## Uptime\n\n24hours\nDirect request success rate on AI Gateway and per-provider.\n\n## Throughput\n\n24hours\nP50 throughput on live AI Gateway traffic, in tokens per second (TPS).\n\n## Latency\n\n24hours\nP50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds.\n\n## Activity\n\nToken volume and request traffic to this model over time.\n\n## Apps\n\nPublic apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for. [View All](https://zenmux.ai/analytics/apps)\n\n## Related Models\n\nMore models from [Anthropic](https://zenmux.ai/anthropic)", "url": "https://wpnews.pro/news/new-model-available-claude-fable-5-1", "canonical_source": "https://zenmux.ai/anthropic/claude-fable-5.1", "published_at": "2026-09-02 01:15:33+00:00", "updated_at": "2026-09-09 07:27:37.132579+00:00", "lang": "en", "topics": ["large-language-models", "ai-products"], "entities": ["Anthropic", "Claude Fable 5.1"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/new-model-available-claude-fable-5-1", "markdown": "https://wpnews.pro/news/new-model-available-claude-fable-5-1.md", "text": "https://wpnews.pro/news/new-model-available-claude-fable-5-1.txt", "jsonld": "https://wpnews.pro/news/new-model-available-claude-fable-5-1.jsonld"}}