Claude prompt caching miss? 5 reasons to troubleshoot and quick reference for minimum token thresholds
When using the Claude API for long-context calls, many developers run into the same confusion: even though they’ve declared caching in the cache_control field, the cache_creation_input_tokens and cache_read_input_tokens in the response remain 0, and no cache discounts appear on the bill. This article systematically breaks down the 5 major reasons for Claude prompt caching misses,…
