[AI]■ STORY TIMELINE
CLAUDE FABLE 5 TOPS BENCHMARKS BUT COSTS DOUBLE
Anthropic released Claude Fable 5, its first Mythos-class model, which achieves record benchmark performance but doubles the price of previous versions. The model also implements stricter safety filters and new data retention policies.
The Decoder+0m
Anthropic has released Claude Fable 5, the first model in its new Mythos class. It leads nearly every benchmark, includi…
Hacker News+1d 11h
Article URL: https://simonwillison.net/2026/Jun/11/fable-is-relentlessly-proactive/ Comments URL: https://news.ycombinat…
The Decoder+2d 3h
Claude Fable 5 tops the Artificial Analysis Intelligence Index with 64.9 points and sets records in five of ten benchmar…
The Decoder+2d 18h
The US government has ordered Anthropic to shut down global access to Fable 5 and Mythos 5, citing alleged jailbreak ris…