Claude Opus 5 — A step change improvement for the Opus tier powering long-running agents.
Claude Opus 5 is an advanced AI model designed for efficient coding and professional work, delivering state-of-the-art performance at a competitive cost.
- Surpasses all other models on coding and knowledge work evaluations, including Frontier-Bench and CursorBench.
- Offers improved performance on scientific research tasks, particularly in life sciences and organic chemistry.
- Functions as the new default model on Claude Max and the strongest model on Claude Pro.