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

Large language models (LLMs) like the AI models that run Claude and ChatGPT process an input called a "prompt" and return an ...

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

During its inaugural developer conference Thursday, Anthropic launched two new AI models that the startup claims are among ...

Large language model developer Anthropic PBC today rolled out its newest Claude 4 frontier models, starting with Opus 4 and ...

Anthropic's new Claude Opus 4 and Sonnet 4 AI models deliver state-of-the-art performance in coding and agentic workflows.

Claude Opus 4 is Anthropic’s most powerful AI model to date, according to the company’s announcement, and capable of working ...

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

Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and record-breaking 72.5% SWE-bench score, transforming AI from quick-response tool to ...

Anthropic is secretly working on two new models called Claude Sonnet 4 and Opus 4, which are believed to be the company's ...

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