If you're not familiar with Claude, it's the family of large-language models made by the AI company Anthropic. And Claude ...

Anthropic has introduced its next generation of Claude models, Claude Opus 4 and Claude Sonnet 4, which the company said set new standards for coding, advanced reasoning, and AI agents.

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

Claude Sonnet 4 brings greater coding skills for free. Claude Sonnet 4, now Anthropic’s default general-purpose model, also introduces some tweaks specifically to boost its coding prowess.

The $20/month Claude 4 Opus failed to beat its free sibling, Claude 4 Sonnet, in head-to-head testing. Here's how Sonnet quietly crushed expectations with smarter, safer code.

Claude Opus 4 and Claude Sonnet 4, part of Anthropic’s new Claude 4 family of models, can analyze large datasets, execute long-horizon tasks, and take complex actions, according to the company.

Anthropic on Thursday announced the availability of Claude Opus 4 and Claude Sonnet 4, the latest iteration of its Claude family of machine learning models.… Be aware, however, that these AI ...

Anthropic says Claude Opus 4 and Sonnet 4 outperform rivals like OpenAI's o3 and Gemini 2.5 Pro on key benchmarks for agentic coding tasks like SWE-bench and Terminal-bench.

These and other AI models don't always agree. Sometimes they'll respond with 42 or 37, as reported by other Register hacks ...

Claude Sonnet 4 is a more affordable and efficiency-focused model that’s better suited to general tasks, which supersedes the 3.7 Sonnet model released in February.Anthropic says Sonnet 4 ...

The CEO of Windsurf, a popular AI-assisted coding tool, said Anthropic is limiting its direct access to certain AI models.

A new Anthropic report shows exactly how in an experiment, AI arrives at an undesirable action: blackmailing a fictional ...