Anthropic Completes New Mythos Training; Claude Sonnet 5 Expected to Launch This Week

KuCoinFlash

Release Time: 06/22/2026 03:32:38

Summary

Anthropic has reportedly completed training for a more powerful version of its Mythos model, with new token listings speculated to follow. The model may be named Mythos 5.1 or Mythos 6, or used internally for future development. Token launch news is also anticipated, as the identifier "claude-sonnet-5" appeared on Anthropic’s partner platform, fueling speculation that Claude Sonnet 5 could launch this week.

Odaily Planet Daily reports that, according to AI observer Andrew Curran, Anthropic has completed training of a new, higher-performance version of the Mythos model; however, it remains unclear whether the model will be named Mythos 5.1 or Mythos 6, and it is also possible that it will be used solely for internal R&D to accelerate the development of subsequent models.

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

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