Claude Opus 4.5 is intelligent, efficient, and the best model in the world for coding, agents, and computer use. It’s also meaningfully better at everyday tasks like deep research and working with slides and spreadsheets. Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes to how work gets done.
I've recently gotten into training grip strength and since it s a new area of strength training for me, I ve been asking Claude a lot of weird questions about training and recovery techniques. So now, my chat history is a ton of stuff about work with the occasional odd question about how often I should be using extensor bands haha
What are some of the strangest things you've asked AI to help with? Did it actually help?
Claude Skills are folders of instructions and resources that make Claude a specialist at your specific tasks. Package your team's workflows, from brand guidelines to data analysis, and use them across Claude apps, Code, and the API.
It's the strongest model for building complex agents. It's the best model at using computers. And it shows substantial gains on tests of reasoning and math.
With the "think" tool, we're giving Claude the ability to include an additional thinking step—complete with its own designated space—as part of getting to its final answer.
This is the first release in Anthropic's 3.5 model family. Sonnet now outperforms competitor models on key evaluations, at twice the speed of Claude 3 Opus and one-fifth of the cost. The team pulled together something really special here.
