The latest versions of Anthropic's Claude generative AI models made their debut Thursday, including a heavier-duty model built specifically for coding and complex tasks. Anthropic launched the new Claude 4 Opus and Claude 4 Sonnet models during its Code with Claude developer conference and executives said the new tools mark a significant step forward in terms of reasoning and deep thinking skills.

Anthropic has long been warning about these risks—so much so that in 2023, the company pledged to not release certain models until it had developed safety measures capable of constraining them. Now this system,

Anthropic has released a new report about its latest model, Claude Opus 4, highlighting a concerning issue found during safety testing. The model, which is considered very advanced and competitive with top systems from companies like OpenAI and Google,