ModelUsage now splits cache-creation tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition → into 5-minute and 1-hour buckets, so you can attribute caching costs precisely. The Node.js minimum rises to 18.14.0, which may break older runtimes.
Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
