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Paste a prompt, see the bill: a free prompt cost calculator for LLM APIs

This story is from 2026-09-02. It is preserved in the archive; the latest stories are on the live feed.

The problem Before you ship a long system prompt or dump a chat transcript into an agent, it’s hard to answer: “What does this cost per call?” What I built A free tool: paste prompt / transcript → estimated tokens + USD against official model list prices. 👉 https://tools.aicostgate.com/prompt-cost…

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  1. 2026-09-02 01:56 · DEV Community — AI
    Paste a prompt, see the bill: a free prompt cost calculator for LLM APIs

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