How Speechify serves 500,000 dynamic pages to 60 million users on Vercel

Speechify on Vercel500,000+ pages served across 40+ languagesCut costs 50% by auto-scaling with Fluid computeZero user impact on bad deploys with Instant RollbacksSpeechify started as a tool for people with dyslexia. Cliff Weitzman, Founder & CEO, built it because reading was challenging and audio made it much easier. That initial use case led Speechify to tens of millions of users and an Apple Design Award for inclusion. The product has since grown into something much larger: an AI work platform where 60 million people listen to documents, delegate tasks to agents, and complete work entirely through voice.But the journey wasn't easy. Early on, they got hacked, and for half a day, every visi