What is Gemini Token Counter?
Gemini Token Counter — A Gemini token counter estimates how many tokens Google's Gemini models will read a text as. Gemini's tokenizer is not public, so client-side counts are estimates; the countTokens API method returns exact numbers free of charge.
This Gemini token counter estimates how Google's models will tokenize your text and shows the result against Gemini's headline feature: a context window of up to one million tokens. Like Anthropic, Google hasn't published Gemini's tokenizer, so browser tools can only estimate — this one says so plainly and points you to the free countTokens API method when you need the exact figure. As a rough anchor, Google documents that 100 tokens ≈ 60–80 English words.