Anthropic has completed training its new version of Mythos, with the release of Sonnet 5 on the horizon.

According to Dynamic Beating monitoring, renowned AI observer Andrew Curran revealed that Anthropic has completed training on a more powerful version of the Mythos model. However, it is currently uncertain whether the new model will be named Mythos 5.1 or Mythos 6, or it may be kept internal by Anthropic to expedite further development.

Meanwhile, with the appearance of a model identifier named claude-sonnet-5 on the Anthropic partner services platform, the developer community is speculating that Sonnet 5 will be officially released next week.