Sonnet 5.5 vs Opus 5.5: which model clones an award winning website better?
We gave 2 Claude models an award winning website each and 1 prompt to rebuild it. The Sonnet 5.5 run took 1 hour 6 minutes and would have cost about $20 at API prices. We guessed wrong about which clone came from which model, then checked the numbers. Two claims we made on camera needed a correction.