Claude Opus 4.1

Claude Opus 4.1 is Anthropic's groundbreaking AI model that redefines what artificial intelligence can accomplish. It's the world's best coding model, capable of working autonomously on complex tasks for several hours.

The key innovation is its hybrid architecture offering two modes: near-instant responses and extended thinking for deep reasoning. The model supports a 200K token context window and can generate up to 32K tokens in a single response.

Technically, Opus 4.1 outperforms competitors: it leads the SWE-bench benchmark with 72.5% and can execute thousands of steps continuously, working for several hours straight. The model effectively searches through external and internal data sources, conducting hours of independent research.

Opus 4.1 can use tools in parallel, follows instructions precisely, and demonstrates significantly improved memory capabilities. This makes it perfect for building AI agents that can autonomously handle complex workflows in software development, research, and enterprise operations.

With rich character depth and excellent writing abilities, it produces human-quality content and excels in creative tasks, making it a versatile tool for both technical and creative professionals.