GPT-5.5 vs Claude Opus 4.6 (2026): Which AI Model Wins for Your Work?
OpenAI’s GPT-5.5 arrived April 23 claiming to be the smartest model yet. Anthropic’s Claude Opus 4.6 still holds the top Chatbot Arena ELO. Both cost real money. Which one actually wins for your workflow? Here’s the full data-driven comparison.