GPT-4o VS Claude Sonnet 4.5

Verdict: If you need a fast multimodal model (text + images + voice) with broad tool integration, GPT-4o is the stronger choice. If your focus is deep analysis, long-form writing, and comprehension quality, Claude Sonnet 4.5 is the better fit. GPT-4o from OpenAI stands out for its speed and ability to process text, images, and voice simultaneously. A 128K context window with competitive pricing ($2.50/$10 per million tokens). It integrates with tools like web search, image generation (DALL-E), and file analysis. Best for multi-tasking and fast interaction. However, it can be less deep in philosophical analysis or long-form creative writing. Claude Sonnet 4.5 from Anthropic excels in deep analysis and long-form, logical writing. A 200K context window allows ingesting entire books. Its accuracy in following complex instructions and avoiding errors is higher. Better for legal review, academic research, and complex coding. However, it doesn't natively process images and is relatively slower. The choice depends on your tasks: for fast daily productivity → GPT-4o. For deep analytical and research work → Claude.

Claude Sonnet 4.5 leads GPT-4o on 4 specs vs 0 — though GPT-4o is cheaper (0.00 vs 0.00). Check the full table and decide based on the specs that matter most to you.