Senior Java Developer · 13 years in enterprise software · Telecom, banking, government systems · Building with AI agents & LLM APIs · Writing about what actual
Cache reads on the Anthropic API cost $0.30/MTok.
Base input costs $3.00/MTok.
That's a 10× difference — if your prompts actually hit the cache.
One timestamp in the system prompt = 0% hit rate. Silently.
medium.com/p/how-to-structur…