Short answer: build the SaaS feature as a token-gated map/reduce pipeline: count before sending, split long text, summarize each chunk, reduce those summaries, and estimate cost before accepting the job. For a healthtech workflow that reads supplier invoices, structured output correctness is the...
Source: [Dev.to](https://dev.to/apexz69/long-text-summarization-explained-cheap-nodejs-api-token-counts-for-saas-5a02)