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What does your agent run actually cost? Receipts for LiteLLM and LangChain apps with tokenecon

This story is from 2026-10-23. It is preserved in the archive; the latest stories are on the live feed.

Your LLM bill arrives as an aggregate: a provider invoice, a dashboard with a big number. Nobody can answer the questions that actually matter: what did that task cost? What does this run cost per correct answer? A single model call has a predictable price. A looping agent — tool calls, observation…

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  1. 2026-10-23 01:39 · DEV Community — AI
    What does your agent run actually cost? Receipts for LiteLLM and LangChain apps with tokenecon

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