Head-to-Head Build-Off: GPT-5.6, Grok 4.5, Claude, and Muse Spark Build the Same 4 Apps

Hacker News·medium signal

A 'build the same 4 apps' test pitting GPT-5.6, Grok 4.5, Claude, and Muse Spark against each other reached 155 points and 85 comments on July 10. Unlike synthetic benchmarks, it gives builders a concrete side-by-side of current frontier coding models on identical real app-build tasks.