Anthropic Claude 4 Opus Launches: The Most Powerful Reasoning Model Debuts, How Does It Compare to GPT-5?

Anthropic released Claude 4 Opus in 2026, significantly surpassing its predecessor in mathematical reasoning, code generation, and long-document comprehension. This article compares benchmark data for Claude 4 Opus, GPT-5, and Gemini 2.5 Pro, analyzing its advantages in enterprise applications and how Anthropic's safety-first strategy impacts model capability limits.