Claude Code may have two cache bugs that can quietly raise API costs by 10 to 20 times. One bug may break cache reuse when the app changes stored request text, and another may cause `—resume` to miss the cache. Reported fixes include using `npx anthropic-ai/claude-code` and avoiding `—resume` until a patch arrives.

It’s not a bug, it’s a feature that lets them earn more 😅

Are those really bugs related to the cache? As the I understand the problem is widespread. How would that be possible in a standard phased rollout?

the expensive part is not just the extra spend. cache bugs also distort your mental model of what a workflow costs, so teams make bad decisions off noisy numbers. billing drift is a planning bug too