React Todo App Generated in Under 4 Seconds — SN40 vs SN50

Same prompt, same output, two chips. We asked our SN40 and SN50 to build a complete React Todo application — add, delete, toggle complete, and filter — and recorded both runs side by side. The SN50 finishes first at 7.7× faster, with roughly a third of the time to first token. No cherry-picked prompt, no trimmed pauses — just two identical requests and a stopwatch.