Budget covers maybe 5M of 100M LLM calls. Run a cheap first stage on everything, route only low-confidence items to the LLM, and use those LLM labels to distill a student that absorbs most of the volume. The cost-vs-coverage math that decides where the threshold goes.
20 answers per topic instead of 10, plus saved progress and bookmarks · no cardor unlock all 523 remaining answers · ₹2,000 / $25
