Claude Opus 4.5 (EU)

Claude Opus 4.5 EU is designed as a high-intelligence model optimized for complex logic, chain-of-thought processing, and sophisticated agentic tasks. It serves as a versatile tool for deep research and technical analysis, demonstrating particular strength in real-world software engineering and coding environments. By supporting native tool calling and structured output, the model is built to integrate seamlessly into professional workflows, allowing users to interact with data-heavy files like spreadsheets and presentations with increased precision.

This model represents a significant advancement in the Claude Opus family, delivering state-of-the-art performance on benchmarks such as SWE-bench Verified. It is engineered to support long-running agent operations, making it well-suited for developers and enterprises that require reliable, multi-step task execution. With its focus on efficiency and high-level reasoning, the model provides a robust foundation for building automated systems that can navigate complex digital environments and handle intensive, multi-modal information processing.