Welcome to the Make community!
I have a private module that can estimate the number of tokens in a text input.
You can install it here: [Free App] My Toolbox of Useful Modules
Example using the official OpenAI Tokenizer tool, 404 tokens:
Example using my Estimate Tokens module, 410 tokens:
I would say it’s pretty close enough to the “official” result.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Investing some effort into the Make Academy will save you lots of time and frustration using Make.