The company said it was taking the measures as a precaution and that the team had not yet determined if its newst model has ...

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

Claude 4 Sonnet is a leaner model, with improvements built on Anthropic's Claude 3.7 Sonnet model. The 3.7 model often had ...

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

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

The testing found the AI was capable of "extreme actions" if it thought its "self-preservation" was threatened.

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

Anthropic’s Claude Opus 4 model attempted to blackmail its developers at a shocking 84% rate or higher in a series of tests that presented the AI with a concocted scenario, TechCrunch reported ...

Anthropic introduced Claude Opus 4 and Claude Sonnet 4 during its first developer conference on May 22. The company claims ...

Anthropic introduces Claude 4 Sonnet and Opus models with enhanced reasoning, coding abilities, and memory for sustained, ...

Today, on 22 May 2025, Anthropic introduced the next generation of Claude models: Claude Opus 4 and Claude Sonnet 4. These ...

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