Hands-on Exercises: Calculating Real API Costs for AI Agents
ProfTomYeh · x · 2026-08-10
Prof. Tom Yeh shared a PDF with 5 math exercises designed to help developers manually calculate and understand API cost structures in agentic workflows.
Key scenarios covered include:
- Comparing billing differences across calls with the same total token count.
- Sizing a sample call to estimate daily average usage.
- The recurring cost of sending system prompts on every single call (the "system prompt tax").
- Evaluating per-call costs within a fixed budget.
Related event: Professor Releases Workbook on Calculating AI Agent API Costs(2 posts)→
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