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Data Engineering8 min read

ML Pipeline Economics: Why Training Costs Are Just the Beginning

Training is 20% of ML costs. Serving, monitoring, and retraining are the other 80%.

By Richard Ewing·

The 80/20 Rule of ML Costs

Training gets all the attention, but it's 20% of total cost. The other 80%: model serving (30%), monitoring and evaluation (15%), data pipelines (20%), retraining (15%).

Optimization: serve models on CPU where latency allows (10x cheaper than GPU serving), batch predictions for non-real-time use cases, implement model compression (2-5x inference cost reduction), and set retraining triggers based on drift (not schedules).

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Published Work

This article expands on ideas from my published work in CIO.com, Built In, Mind the Product, and HackerNoon. View published articles →

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Richard Ewing

The Product Economist — Quantifying engineering economics for technology leaders, PE firms, and boards.