LLM Feature Launch Checklist: Quality, Cost, Go/No-Go

A short printable checklist for engineers, product managers and founders about to launch or expand a feature built on a large language model (LLM). Work through it in the week before launch. Inside: defining what "good" means, building a test set, failure and safety checks, a cost and speed worksheet, launch and rollback steps, and a one-page go/no-go summary for your meeting. About 8 pages, prints on A4 and US Letter. Every fact is sourced and dated at the back. It is a review aid, not legal advice, and it makes no promise about results.

Educational content. Facts checked 3 November 2026; every source is listed at the back.