Post 😮 How Anthropic Made Claude's Apps 3x Faster in Two Weeks

2 October 2026

JavaScript

Photo
click to show

😮 How Anthropic Made Claude's Apps 3x Faster in Two Weeks A grab bag of performance lessons from a sprint that cut p75 'time-to-typeable' from 3.1s to 0.55s. Em dashes (the irony!) pushed V8 onto a slower regex path, a stray location.reload() caused half a million hidden reloads a day, and more. Wang, Attard, and G (Anthropic)

5 · 1.8K · 19:53

Nearby in the feed

JavaScript06:31CHALLENGE const arr = [1, 2, 3]; const log = []; const result = arr.map((x, i) => { if (i === 0) arr.push(4); log.push(x); return x * 2; }); console.log(result.J

JavaScript06:31Poll

this message

JavaScript13:09🤩 The Grand Unifying Architecture of Frontend SolidJS's creator argues that HTMX, React, LiveView, and friends differ mostly in how they split the same three jo J

JavaScript06:31CHALLENGE const compose = (...fns) => fns.reduce((f, g) => (...args) => f(g(...args))); const pipe = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args))