Claude Opus 4.6 is an advanced language model designed for deep reasoning, extended agentic workflows, and large codebases. It offers a one‑million token context window in beta, adaptive planning, and sustained focus on long‑running tasks, providing state‑of‑the‑art performance in coding, analysis, research, and real‑world work. The model targets professionals and developers handling complex projects that require reliable, high‑capacity AI assistance.