Anthropic's new AI model rivals Fable 5 and is cheaper as businesses fret about costs

Anthropic released Claude Opus 5, a new AI model that outperforms its previous Claude Fable 5 model on coding and knowledge tasks while costing half as much ($5 per million input tokens versus higher prices for Fable 5). The company designed Opus 5 for everyday business use as enterprises increasingly demand cheaper AI options, though Anthropic noted the model is not state-of-the-art for risky dual-use capabilities (abilities that can be used for both helpful and harmful purposes) like cybersecurity.