Claude Opus 5 Is Highly Capable, But Is No Mythos

· Thezvi Substack · July 28, 2026, 6:37 p.m.
AI Opus 5 Mythos software development
Summary
This blog post discusses the capabilities of Claude Opus 5, focusing on its strange new features and how it compares to its predecessor Mythos. It delves into the nuances of the release, providing insights for developers, particularly in AI and machine learning fields.
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