🧠Anthropic
July 24, 2026
Product UpdatesIntroducing Claude Opus 5
Overview
Opus 5 is a step change improvement for the Opus tier powering long-running agents while delivering improvements in coding and professional work. Product Announcements Introducing Claude Opus 5 Jul 24, 2026 Claude Opus 5 is available today. It's a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price.
Key Takeaways
- On coding and knowledge work evaluations like Frontier-Bench and GDPval-AA , Opus 5 is the new state-of-the-art, though it remains behind Mythos 5 on cybersecurity tasks.
Opus 5 is designed to be used every day: it works more efficiently than other models.
- 1, Opus 5 surpasses all other models, and more than doubles Opus 4.
- 5× the next-best model for the same cost per task.
Even at its lowest effort setting, Opus 5 passes more tasks than any other model.
- Its improvements are most notable on organic chemistry tasks, like inferring molecular structures from spectroscopy data (it scores 10.
- Given a real bug in a popular open-source package manager, Opus 5 found the root cause and fixed an edge case that the community's patch had missed.
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