What is Claude Opus 4.6, Anthropic's new AI model?

US-based AI company Anthropic has launched Claude Opus 4.6, its most capable model to date, improving reasoning, coding, and enterprise workflows over Opus 4.5. It features a beta one-million-token context window for processing extremely large inputs and coordinated AI-agent support. The model is available through Claude platforms, the Claude API, and major cloud services for professional use.