Fable 5.1
#23 in Coding-AgentenScale Ai · v5.1 · 2× · tolest 13. Sept. 2026
17
Momentum
Important Notice: "Fable 5.1" is NOT a product of "scale-ai" contrary to the task description, but rather the model "Claude Fable 5.1" by Anthropic. The official product page is located at anthropic.com (not on a separate product domain). Fable 5.1 is a "Myth-class" AI model for long-running, autonomous coding and knowledge work, available through the Claude platform, Claude Code, AWS, Google Cloud, and Microsoft Foundry. Compared to its predecessor Fable 5, it primarily improves agentic coding and research tasks as well as costs for Cache-Reads. Anthropic has not published an official SWE-bench-Verified value for Fable 5.1 itself; circulating 95% values refer to the predecessor Fable 5.
Momentum-Verloop
15.06.13.09.
Features
| Base Model | Claude Fable 5.1 (Mythos-class model, same base as Claude Mythos 5.1 with standard safety guardrails) |
| License | Proprietary, commercial model (API access, not open source) |
| Platform | Claude Platform, Claude Code, Claude.ai, Amazon Bedrock/AWS, Google Cloud, Microsoft Foundry/Azure |
| Price | $10 / million input tokens, $50 / million output tokens, cache reads $0.25 / million tokens |
| Release Date | September 1, 2026 |
| Interface (IDE/CLI/Web) | Claude Code (CLI), Claude.ai (Web), Claude Cowork, API/SDK, cloud marketplaces |