It is rumored that Anthropic has completed training on the new Mythos model, and Sonnet 5 may be released this week

Odaily reported that, according to AI observer Andrew Curran, Anthropic has completed training on a new, more powerful Mythos model. However, it is currently unclear whether the model will be named Mythos 5.1 or Mythos 6, and it is also possible that it is intended solely for internal research to accelerate subsequent model development.

Additionally, with the appearance of the "claude-sonnet-5" model identifier on Anthropic's partner service platform, the developer community widely speculates that Claude Sonnet 5 might be officially released this week.