
Anthropic updates Claude Opus 4.8 with improved honesty, effort controls
Anthropic released Opus 4.8 for Claude in May 2026, focusing on better honesty and more control over how much effort the AI puts into tasks. Early feedback suggests the model now flags uncertainty more often, which may help catch errors and avoid overconfident mistakes. Testers report improvements in catching bugs and handling vague requests, and the model seems less wordy. Benchmarks show Opus 4.8 is competitive, especially in some coding tasks, and it may be cheaper to use. However, adoption still appears limited to early testing, so it is not clear yet how widely it will be used.













