t13: Flaky web service client -- GPT-6.1 Sol vs Claude Opus 5.5
Write a Node.js client that still gets every item from a server that keeps failing.
Opus: 111.6 s. Sol: 317.9 s. Sol took 2.8 times as long.
Opus (s)Sol (s)
Hidden tests: Opus 13 of 13, Sol 13 of 13.
Blind judge pick: Sol (small edge).
"Both solutions are exceptionally well-written and robust. Solution A [Sol] edges out B [Opus] by using `performance.now()` (which is immune to system clock changes), implementing rigorous option validation, and using a highly efficient single-timer scheduling architecture."
"An exceptionally robust, well-structured, and thoroughly tested solution that perfectly handles concurrency, backoff, and all edge cases."
"An exceptionally robust and well-tested implementation that elegantly handles concurrency, retries, and timeouts using modern Node.js features."