Anthropic launches Claude Fable 5.1 and says it’s up to 45 percent cheaper for agentic work

Corroborated by 2 sources from 2 publishers

globaltech3h ago

TL;DR

Multiple sources report that anthropic Says New Fable 5.1 AI Model Is Cheaper, Better at Coding.

Bloomberg Technology

https://www.bloomberg.com/news/articles/2026-09-01/anthropic-says-new-fable-5-1-ai-model-is-cheaper-better-at-coding

The Verge (Tech)

https://www.theverge.com/ai-artificial-intelligence/987830/anthropic-claude-fable-mythos-5-1