AI Models & Launches — May 31, 2026

This Sunday, new AI models are pushing boundaries while experts warn about critical limitations. Both OpenTools and Mint confirm Anthropic has released Claude Opus 4.8, just 41 days after its predecessor. This new model introduces Dynamic Workflows, allowing it to coordinate many subagents. Crucially, Opus 4.8 is four times more "honest" about its uncertainty, making it more reliable. Mint further reports Anthropic is also testing a new "Mythos" AI, described as more human-like, with demonstrat