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Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
The Craft of Post-Training: A Practical Guide for AI Engineers and Developers

The Craft of Post-Training: A Practical Guide for AI Engineers and Developers

Paperback

General ComputersProgramming

Publisher Price: $79.99

ISBN10: 1718505205
ISBN13: 9781718505209
Publisher: No Starch Press
Published: Sep 1 2026
Pages: 416
Weight: 1.80
Height: 1.00 Width: 7.00 Depth: 9.20
Language: English
Capable by default. Reliable by design.

A pre-trained model has read most of the internet--and can be trusted with almost none of it. Post-training is the work that changes that: where you take a raw, general model and shape it into something that behaves, follows instructions, refuses what it shouldn't do, and handles the specific job you need. It's the human hand on the machine, and the part almost no one explains.

Chris von Csefalvay has spent his career building production ML systems in industry, from clinical language to legal text. In The Craft of Post-Training, he shows you the decisions behind every technique: when to fine-tune and when not to, why a model quietly gets worse, and which method fits the constraint you're actually under. The math is here, because knowing why a technique works is what lets you debug it when it breaks.

You'll know how to:

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General Computers