vercel ai sdk - Abrarqasim Blogs

Claude Prompt Caching in 2026: The Setup That Actually Cut My API Bill

I ran Claude's prompt caching in production for six months. Here's the cache_control setup, TTL trade-offs, and the anti-patterns that burned me.

My honest take on Vercel AI SDK v5 after three production projects, plus the useChat and tool-calling gotchas I wish someone had warned me about…