Count Tokens
Counts prompt tokens for a Gemini model in Google AI Studio.
POST
Body
Arguments
stringrequired
Required. Model endpoint token including suffix, for example gemini-2.5-flash:countTokens.
array of object
Optional prompt contents to tokenize.
Uncommon arguments
object
Optional full GenerateContentRequest payload.
Field selectionChoose which fields should be included in the response. Learn more
string
Comma-separated response fields to include.