The cheapest LLM call is the one you don't make: a caching layer that actually pays off In the last post I wrote about routing across providers to cut our bill ~40%. Caching was the second lever — and honestly the more underrated one. Here's what we learned shipping it.
Source: [Dev.to](https://dev.to/xuanyi/the-cheapest-llm-call-is-the-one-you-dont-make-a-caching-layer-that-actually-pays-off-59e)