GPT-4o vs Claude vs Gemini: I ran the same 50 prompts through all three so you don't have to

I got tired of the copy-paste workflow. You know the one: write a prompt in ChatGPT, screenshot the result, open a new tab for Claude, paste the same prompt, screenshot again, repeat for Gemini. By the time you've done this across three models you've forgotten what you were originally trying to accomplish. So I started running structured comparisons using OneAIWorld , which sends the same prompt to multiple LLMs simultaneously and shows results side by side. I ran 50 prompts across GPT-4o, Claude 3, and Gemini 1.5 Pro, split across five categories. Here's what I actually found. ## The categories I tested Code generation — write a function, fix a bug, explain this snippet Structured output — generate JSON, create a table, format a report Creative writing — story openings, product descriptions, email copy Reasoning/logic — word problems, multi-step instructions, edge cases Summarisation — compress a long article into key points ## Code generation Winner: GPT-4o (but it's close) GPT-4o pr