Version 1 — June 2026

The curated playbook of AI cost wins

Real production data, not blog posts.

  • 1.

    Prompt caching strategies

    When it pays, by model and volume, with real cost examples

  • 2.

    Model substitution tables

    Which workloads move from GPT-4o/Claude Sonnet to Haiku/Flash without quality loss

  • 3.

    Agent cost guardrails

    Cap a runaway loop before it becomes a $47k incident

  • 4.

    Real anonymized cases

    The $847→$160/month optimization, the overnight agent cost profile

$99

One-time purchase. No subscription.

14-day no-questions refund if it's not for you.

What you get

  • • Named models (not "a cheaper alternative")
  • • Real cost numbers from production deployments
  • • Ranked by savings impact, not comprehensiveness
  • • Agent-specific guardrail patterns that prevent $47k incidents

What makes it different from free content

  • • Sourced from running real agents in production — not benchmarks
  • • The $847→$160/month case is anonymized but real
  • • Scruuge's point of view on which wins are worth your time
  • • Updated as better data emerges — v2 when it's earned
♦Ebenezer’s Pledge: We profit from your clarity, not your confusion.

Questions