Understanding Token Costs for Claygent and OpenAI API Usage

I'm trying to calculate what the cost/tokens might be of using Claygent with the OpenAI API. Does Claygent consume an average/usual amount of tokens for any given prompt? If so, how many? I ran one of my prompts through OpenAI's tokenzier and found it was roughly 400 input tokens. Is this how many tokens it would cost if I ran the same prompt with Claygent or does Claygent add a flat base/a multiplier of tokens for each run? Also, for any claygent prompts I've already run, is there anyway to see the input & output tokens? Thanks for the help! Does Token consumption change based on the LLM model used?