For prompt engineers and developers who need a quick token estimate for planning prompts, limits and costs. You get characters, words, estimated tokens and tokens per word.
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You are a helpful assistant. Summarise the quarterly report in three concise bullet points for an executive audience.
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117 characters, 18 words, about 30 estimated tokens, 1.67 tokens per word
For English text a rough rule is about 4 characters or 0.75 words per token, so 100 words is roughly 130 tokens. The counter takes the higher of characters divided by 4 and words times 1.33.
Each model uses its own byte pair encoding tokenizer, and chat APIs add a few tokens of formatting per message. This tool gives an estimate for planning, not a billing-exact count.
Usually yes. Code symbols, rare words and many non-Latin scripts split into more tokens per character than plain English, so leave extra headroom.
Yes. It is free, needs no sign-up and runs entirely in your browser, so what you type is not uploaded. You only sign in if you want to email a result to yourself or save it to your CareerByteCode profile.