Faced with the news it was set to be replaced, the AI tool threatened to blackmail the engineer in charge by revealing an extramarital affair.

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 day-long collaborator.

Anthropic just unveiled its Claude Opus 4 and Claude Sonnet 4 models. Just like all other AI companies, Anthropic is working on AI agents that can work for you. This goes far beyond simply using a chatbot.

Anthropic's newest editon of its flagship AI product will address significant limitations in current large language models.

Anthropic has announced the release of its latest AI models, Claude Opus 4 and Claude Sonnet 4, which aim to support a wider range of professional and academic tasks beyond code generation. According to Anthropic, Claude Opus 4 is optimized for extended, focused sessions that involve complex reasoning, context retention and tool use.

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.

In a landmark move underscoring the escalating power and potential risks of modern AI, Anthropic has elevated its flagship Claude Opus 4 to its highest internal safety level, ASL-3. Announced alongside the release of its advanced Claude 4 models,

Anthropic, backed by Amazon.com, Inc. (NASDAQ:AMZN), has launched its most advanced AI models to date: Claude Opus 4 and Claude Sonnet 4. Touted as the new gold standard in AI, these models can autonomously complete full workdays,