Claude Opus

Anthropic's most capable model tier in the Claude family, designed for complex reasoning, extended agentic tasks, and supervising multi-agent workflows.

Claude Opus is Anthropic's flagship model tier, positioned above Sonnet and Haiku in the Claude lineup. Opus models are optimized for tasks requiring deep reasoning, long-context understanding, and sustained agentic operation. Starting with Opus 4.6, the tier emphasizes multi-agent coordination capabilities and extended context windows.

Also known as