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Tools

Calculators for practical AI decisions.

Run the numbers in your browser, inspect the assumptions, and then read the related guide when you want the reasoning behind the result.

LLMs

Token Estimator

Estimate token count from text length with a visible heuristic and understand why tokenizers differ.

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API economics

LLM Cost Calculator

Turn input and output token rates plus request volume into per-request and monthly spend.

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Evaluation

ML Metrics Calculator

Convert a confusion matrix into precision, recall, F1, and accuracy.

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Hardware

GPU VRAM Estimator

Estimate model-weight memory from parameter count, precision, and runtime overhead.

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