Claude Opus 4.5

Claude Opus 4.5

Anthropic's most intelligent model (Nov 2025).

Claude Opus 4.5 is Anthropic's most capable model to date (released Nov 2025). It excels at deep reasoning, agentic tasks, and complex real-world coding challenges.

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Overview

Claude Opus 4.5 is Anthropic's most capable model to date (released Nov 2025). It excels at deep reasoning, agentic tasks, and complex real-world coding challenges.

Use Cases

Architecture design

Complex system analysis

Research