How production AI actually gets made — models, agents, web data, and the unglamorous engineering that keeps it standing. No hype, no AI-generated filler. One deep piece a week.
They demo beautifully and break on contact with reality. The five failure modes nobody designs for, and the math of multi-step reliability.
A builder's decision tree — by task, latency, and cost, and where each model quietly falls apart.
More customers, or less cost. Every agent worth building ladders to one of them — here's how to tell which.
Retrieval, citations, and evals — how to make a knowledge agent your legal team will actually trust.
ToS, robots.txt, rate limits, and where the lines actually are — without becoming someone's lawsuit.
Fingerprinting, behavioral signals, and the defensive playbook for keeping bad traffic out.
Who controls the key, who pays the model bill, and why BYOK is the trust unlock for 2026.
Demand, churn, and failure prediction — acting before the cost lands instead of cleaning up after.