Claude Opus 5: Anthropic's New AI Model, Cheaper & Smarter

Claude Opus 5 is now available. This new model is described as thoughtful, proactive, and approaches the intelligence of Claude Fable 5 at half the price. Opus 5 is the new state-of-the-art for coding and knowledge work evaluations, outperforming other models on benchmarks like Frontier-Bench and GDPval-AA. It is now the default model on Claude Max and the strongest on Claude Pro. What's interesting is that Opus 5 offers greatly improved performance for the same cost as its predecessor, Opus 4.8. For example, on Frontier-Bench v0.1, it more than doubles Opus 4.8’s performance at a lower cost. It also excels in knowledge work and problem-solving, with its score on ARC-AGI 3 being three times higher than the next-best model. The model also shows significant improvements in scientific research, particularly in organic chemistry and protein-related tasks. The bottom line is that Opus 5 aims to deliver higher intelligence and efficiency at a more accessible price point for everyday use.