Claude Opus 5.5 delivers Fable 5.1 performance – and costs 40% less

Elyse Betters Picaro/ZDNET ZDNET’s key takeaways Claude Opus 5.5 could be a big win for power users. Developers may see faster coding with fewer steps. Anthropic says the upgrade is safer, cheaper, and less wordy. Less than two months after the release of Claude Opus 5, Anthropic is back with Opus 5