Free calculator for estimating LLM API costs before launch

Sharing a small free tool for teams building agentic apps and trying to sanity-check LLM spend before production:

It lets you enter monthly requests, average input/output tokens, and a model, then estimates monthly API cost plus savings from caching, context trimming, and model routing.

I’m building Tokenwise, so the page mentions us, but the calculator itself is free and does not require signup. Hope it is useful for anyone budgeting LangChain/LangGraph workloads.