Token economics across providers. Know the pricing models for Anthropic Claude (Opus 4 at ≈$15/MTok input, ≈$75/MTok output; Sonnet 4 at ≈$3/$15; Haiku at ≈$0.25/$1.25), OpenAI (GPT-4o at ≈$2.50/$10;...

Estimate a project before running it. Given a project description ("build OAuth into a Next.js app"), produce a cost range (P10/P50/P90) based on task count, average tokens per task, model selection,...

"Walk me through how you'd estimate the cost of a complex agentic project before starting it." Task decomposition (how many LLM invocations) → tokens per invocation (input context + output) → model...