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 ...

This development, detailed in a recently published safety report, have led Anthropic to classify Claude Opus 4 as an ‘ASL-3’ ...

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

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

Explore Claude 4, the AI redefining writing, coding, and workflows. See how it empowers users with advanced tools and ...

Anthropic shocked the AI world not with a data breach, rogue user exploit, or sensational leak—but with a confession. Buried ...

It has been reported that Claude Opus 4 has shown worrying behavior during pre-release testing. According to a report published by Anthropic (PDF file), there have been multiple instances in which ...

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

"Claude 4 is here" - "Try Claude Sonnet 4 and Claude Opus 4 today" "Try Claude Sonnet 4 or Claude Opus 4 for Anthropic’s ...

Anthropic's most powerful model yet, Claude 4, has unwanted side effects: The AI can report you to authorities and the press.

Anthropic launches its Claude 4 series, featuring Opus 4 and Sonnet 4, delivering new AI benchmarks in coding, advanced ...