Considerations for RSS to Email Summarizer and Token Costs

Question - I am building a very simply RSS to email summarizer. Is 1 token the minimum cost per interaction? So, if Claude uses one token per interaction here, is there a point in taking the performance hit and moving to Gemini? For those interested: Once in gmail, these messages get filtered and auto labeled as RSS. Once a day, Comet, the Perplexity browser, has a task to read all of these, summarize the important ones and highlight content relevant to my work. Basically, I am getting Perplexity to read and monitor about 20 publications for me.