Claude Opus 4.7 Dominates ChatGPT-5.5 Across 7 Hard AI Challenges
Tom's Guide pits ChatGPT-5.5 against Claude Opus 4.7 in seven tough prompts spanning probability, math proofs, chemistry reasoning, and calculus. Across the board, Claude delivers deeper reasoning and more formal demonstrations, with ChatGPT-5.5 showing strengths in structured and straightforward solutions but often lacking the same level of rigor, leading to Claude as the overall winner in this head-to-head AI face-off.