How to Keep Enrichment Costs Predictable in Clay as Volume Grows?

For people doing a lot of enrichment in Clay, how do you keep costs predictable as volume grows? I’m still figuring out the best setup. Right now my concern is that as soon as enrichment volume goes up, credits can get hard to reason about, especially when you’re checking multiple providers or running account + contact enrichment together. Curious how others handle it. Do you keep the full workflow in Clay? Or do you move some parts to Apollo / Hunter / Clearbit directly, n8n, scripts, or internal tooling? Mostly trying to avoid building a workflow that works at small volume but becomes expensive or messy later.