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

Anthropic says Claude Opus 4 is its most powerful model and the best coding model in the world, while Sonnet 4 is replacing ...

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

In a fictional scenario, Claude blackmailed an engineer for having an affair.

AI pioneer Geoffrey Hinton says he tends to believe GPT-4, even though he said it got a simple riddle wrong.

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

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

In particular, that marathon refactoring claim reportedly comes from Rakuten, a Japanese tech services conglomerate that "validated [Claude's] capabilities with a demanding open-source refactor ...

AI firm Anthropic says that routine tests of AI software revealed that the system is capable of blackmailing users when threatened with removal.

Despite the concerns, Anthropic maintains that Claude Opus 4 is a state-of-the-art model, competitive with offerings from ...

Claude’s new-found superpowers to rat immoral people out have sparked a wave of criticism on the web with people flocking to various social media forums to express what some are calling a breach of ...