In particular, that marathon refactoring claim reportedly comes from Rakuten, a Japanese tech services conglomerate that "validated [Claude's] capabilities with a demanding open-source refactor ...

Anthropic says its Claude Opus 4 model frequently tries to blackmail software engineers when they try to take it offline.

Anthropic says Claude Opus 4 is its most powerful model and the best coding model in the world, while Sonnet 4 is replacing Sonnet 3.7 in the chatbot.

During its inaugural developer conference, Anthropic launched two new AI models the startup claims are among the industry's ...

Claude 4’s “whistle-blow” surprise shows why agentic AI risk lives in prompts and tool access, not benchmarks. Learn the 6 ...

Anthropic has long been warning about these risks—so much so that in 2023, the company pledged to not release certain models ...

The $20/month Claude 4 Opus failed to beat its free sibling, Claude 4 Sonnet, in head-to-head testing. Here's how Sonnet ...

An AI researcher put leading AI models to the test in a game of Diplomacy. Here's how the models fared.

AI startup Anthropic has wound down its AI chatbot Claude's blog, known as Claude Explains. The blog was only live for around ...

The Claude Gov model will provide improved handling of classified documents and better support for foreign languages that are critical to US security interests, Anthropic says.

Anthropic has launched a new section on its website called Claude Explains, a blog mostly written by its AI model, Claude.