Comment by EGreg

Boris, is the KV cache TTL now reduced to 5 minutes from 1 hour?

I think this may be the biggest concern for people building tools on the API: https://github.com/anthropics/claude-code/issues/46829

I would argue that KV caching is a net gain for Ant and a well-maintained cache is the biggest thing that can generate induced demand and a thriving third party ecosystem. https://safebots.ai/papers/KV.pdf