Count tokens, words and characters for prompts.
Paste a prompt and see what it costs on every major AI model at once.
Estimate tokens, words and characters for any text.
Convert between words, characters and tokens.
Count characters, words, sentences and estimated tokens.
Estimate the cost of model output length.
See how many tokens $1 buys on any model.
See what percentage of a model's context window you're using.
Check if your document fits a model's context window in one call.
See how resending chat history inflates tokens and cost.
See why non-English text costs more tokens.
Compare token counts for prose, code, JSON and more.