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 launched two more Claude AI models: Claude Sonnet 4 and Claude Opus 4.