May 29, 2026

Anthropic’s Claude Opus 4.8 is its most honest AI model yet, and Mythos is coming in weeks

a very tall building sitting in the middle of a city
Christian Lue / Unsplash

Anthropic has released Claude Opus 4.8, an upgrade to its flagship AI model that the company says is more honest, more reliable in agentic tasks, and better at catching its own mistakes. The model is available immediately at the same price as its pre...