Side-by-side comparison of GPT-5 and Claude Opus with detailed analysis, pricing, and features
OpenAI flagship model
OpenAI most capable language model with breakthrough reasoning, 256K context, and multimodal support.
Anthropic flagship model
Anthropic most powerful model. Best-in-class for agentic coding, long documents, and complex reasoning.
Both are frontier models. GPT-5 for breadth, Opus for depth.
Best for: multimodal tasks, real-time info, plugin workflows
Best for: complex reasoning, coding, professional writing