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AI · April 29, 2026

AI Cost —Token Counter & Cost Calculator

Every number behind your AI prompt. Free, no signup.

What it does

Tired of guessing how much your AI prompts cost? 7 free tools in one place — token counter, cost calculator, context window visualizer, monthly budget planner, throughput timer, and tokens↔words converter. Works with GPT-4o, Claude Sonnet, Gemini, Llama. Uses real tiktoken library for accurate counts. Includes a prompt optimizer that strips filler words to save tokens. Zero backend. Everything runs in your browser. No account, no data stored.

Does the same job

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  • TokenCounter2024 · ▲117

    Count tokens and estimate costs for any AI model

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    Token price calculator for 400+ LLMs2024 · github.com · ▲268

    Hey HN! Tokencost is a utility library for estimating LLM costs. There are hundreds of different models now, and they all have their own pricing schemes. It’s difficult to keep up with the pricing changes, and it’s even more difficult to estimate how much your prompts and completions will cost until you see the bill. Tokencost works by counting the number of tokens in prompt and completion messages and multiplying that number by the corresponding model cost. Under the hood, it’s really just a simple cost dictionary and some utility functions for getting the prices right. It also accounts for…

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  • Free Token CounterJun 2026 · freetokencounter.com · ▲3

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