Rumor: Anthropic Completes Training of New Mythos Model, Sonnet 5 May Be Released This Week

Odaily Planet Daily News According to AI observer Andrew Curran, Anthropic has completed training on the 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 R&D to accelerate subsequent model development.

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