Free, Pro, Max, Team, and Enterprise Claude plans can access Claude Sonnet 4 and Opus 4 now, with an extended thinking mode ...

Bowman later edited his tweet and the following one in a thread to read as follows, but it still didn't convince the ...

Claude Opus 4 is the world’s best coding model, Anthropic said. The company also released a safety report for the hybrid ...

Anthropic kicked off its first-ever Code with Claude conference today with the announcement of a new frontier AI system.

Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and ...

A third-party research institute Anthropic partnered with to test Claude Opus 4 recommended against deploying an early ...

Claude Opus is Anthropic's largest version of the model family with more power for longer, complex tasks, whereas Sonnet is ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy ...

Anthropic’s Claude Opus 4 showed blackmail-like behavior in simulated tests. Learn what triggered it and what safety steps ...

Anthropic claims Claude Opus 4 can compete with GPT-4.1 and Gemini 2.5, while Sonnet 4 outperforms its predecessor in ...

Anthropic's new model might also report users to authorities and the press if it senses "egregious wrongdoing." ...

Anthropic has unveiled Claude Opus 4 and Claude Sonnet 4, next-generation AI models designed to enhance coding, reasoning, ...