How to Use the AI Token Count Estimator
Once you start working with AI APIs like GPT or Claude at any real volume, token counts and cost start to matter. This tool takes any text you paste in and applies a simple approximation — about 4 characters per token for English and other Latin-script text, and about 2.5 characters per token for Korean — to give you a fast, rough token estimate.
Real AI models rely on complex subword tokenizers like BPE, so this number is meant as a ballpark figure rather than an exact count. Pick a model family and you'll also see an estimated cost based on example pricing, which is handy for gauging roughly how expensive a long prompt or document might be before sending it to an API.
For an exact token count and real billing amount, always check the official tokenizer and pricing page of the AI provider you're actually using — this tool is meant for quick, approximate pre-checks.
Frequently Asked Questions
No. Real tokenizers split words and characters using complex subword algorithms, while this tool uses a simple approximation: about 4 characters per token for English, and about 2.5 characters per token for Korean. For exact figures, check the official tokenizer of the AI provider you're using.
It's based on example rates for illustration only — actual pricing varies by model and changes over time. Always check the AI provider's official pricing page for exact billing.