On May 22, 2025, Anthropic officially unveiled its next-generation Claude 4 family—Claude Opus 4 and Claude Sonnet 4—marking a significant leap in large-language model capabilities. The announcement, delivered at Anthropic’s inaugural developer conference, emphasizes Claude Opus 4’s prowess in sustained, long-horizon tasks—capable of “focused effort” over several hours—and positions Anthropic in direct competition with OpenAI, […]