[Anthropic prepares to release Claude Mythos 5.5 model](https://www.testingcatalog.com/anthropic-prepares-to-release-claude-mythos-5-5-model/)

Anthropic may be close to launching Claude Mythos 5.5 after a hidden website reference surfaced. Reports also point to Fable 5.5 testing, but specs, benchmarks, timing, and access remain unconfirmed.

 [#anthropic](?q=%23anthropic) [@testingcatalog](https://t.me/testingcatalog)