The AI cost of JavaScript frameworks

A developer created a benchmark to measure AI agents' performance building a Pokémon app across different JavaScript frameworks (Next.js, Nuxt, SvelteKit, etc.), countering the industry's tendency to make framework claims without evidence. The test evaluated development time, tokens spent, lines of code, and Lighthouse performance scores, using official tools for each framework to ensure fair comparison. While acknowledging the benchmark's limitations as a relatively simple, content-focused app, the author argues the experiment demonstrates the need for data-driven decisions in an era where AI, not developer experience, is increasingly driving framework choices.