Claude Opus 4.5

Anthropic

A high-capability model from the Claude Opus series, optimized for tasks not requiring explicit reasoning chains. It maintains strong performance in coding, long-context understanding, and multimodal tasks.

Anthropic

Claude Opus 4.5 (Reasoning) is Anthropic's most capable model, optimized for deep reasoning and complex problem-solving. It features an advanced 'thinking' mode that allows for extended chain-of-thought processing to tackle intricate tasks in coding, analysis, and creative work.