AI System Design Newsletter
AI EngineeringThe technical connective tissue between the AI hype and actual engineering. Every issue starts with what’s buzzing—from trillion-parameter model launches to the latest custom silicon—and deconstructs it down to the lowest level.
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 17 | Founded | 2 months ago | Last Issue | 45 hours ago |
| Active | |||||
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aisysdesign.substack.comLatest Issues
Updated : How to Prevent Fabricated Citations in Production RAG
The compliance team that discovered their AI had been citing made-up regulations
The compliance team that discovered their AI had been citing made-up regulations
How to Prevent Fabricated Citations in Production RAG
The compliance team that discovered their AI had been citing made-up regulations
A legal compliance startup built a RAG system to help enterprise clients navigate EU AI Act requirements. The system retrieved relevant regulatory text,...
Lessons from an 89% AI Eval That Failed in Production
Why your automated LLM-as-judge scores hide critical intent failures—and how to fix your rubrics before launch.
The eval that said 89% and the users who said otherwise
Updated : How a Date Format Change Broke a Production AI Model Without Any Errors
The model that got worse in January and nobody noticed until March
The model that got worse in January and nobody noticed until March
Updated : The Agent that spent $23,000 in four hours without finishing the task
A startup was building an autonomous research agent.
A startup was building an autonomous research agent. The agent’s job: given a company name, gather financial data, news, and analyst reports, then produce a structured investment brief....
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Whether you’re looking to pivot your career, supercharge your current role, or simply understand the tech shaping our world, AI Engineering is your roadmap.
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