The AI Loop by Union.ai
The AI Loop, NielsA technical newsletter and community for engineers building AI, ML, and agentic systems.
| Platform |  | Pricing | Only free issues | Publishes | Monthly |
|---|---|---|---|---|---|
| Issues | 15 | Founded | a year ago | Last Issue | 2 months ago |
| Active | |||||
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unionailoop.substack.comLatest Issues
Durability in the AI stack isn’t what you think it is
Local demos make AI look easy. You fine-tune a model in a notebook, wire an agent to a few tools, and it works beautifully. But then you try to run the same thing in production, and you discover the demo was borrowing something it didn’t pa...
Breach! How AI stacks are compromising data security.
In March, Mercor, a $10 billion AI startup that supplies training data to Anthropic, OpenAI, and Meta, confirmed it had been breached. The attackers claimed four terabytes of data: Slack logs, internal ticketing systems, videos of conversat...
The Weakest Link In AI Stacks
By Ketan Umare, co-founder of Union.ai and co-creator of Flyte 2
Have you ever met anyone who loves Apache Airflow? Me neither.
Yet it’s running the AI pipelines at hundreds of companies right now. It was designed for ETL workfl...
Model March Madness (Part 2)
Welcome back to 2026 Model March Madness. Just like the real March Madness, let’s wrap this thing up in April.
When we left off in Part 1, 64 models had battled their way down to 8, and much like my hips, the bracket didn’t lie: in a scori...
Model March Madness (Part 1)
March Madness is upon us, and as great as college basketball is, I know almost nothing about it. So, let’s replace ballers with models. NCAA with LLM. In this edition of The AI Loop, 64 of today’s highest performance models go head-to-head...
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A technical newsletter and growing community for the builders shaping the future of AI, ML, and agentic systems.
Building stuff with ML and AI
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