The AI Engineer
Paolo PerroneBecome dangerously good at AI Engineering.
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 31 | Founded | 7 months ago | Last Issue | 7 days ago |
| Active | |||||
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theaiengineer.substack.comLatest Issues
What Does Pinecone Actually Do?
🧭 Part of the 🔍 RAG & Search course
You’re three weeks into building a RAG system. You’ve chunked your documents. You’ve generated embeddings with text-embedding-3-small and watched the OpenAI bill climb. You’ve got 8 million vectors s...
Quantization in Practice: GPTQ vs AWQ vs GGUF
🧭 Part 6 of 8 of the ⚡ Hardware & Inference course
You picked Qwen2.5-32B for your project. At full precision, the model is 64 GB. The H100s and H200s that can hold it cost $2-4 an hour to rent and $30,000+ to buy. Most teams don’t have o...
What are AI Agent Guardrails?
🧭 Part 12 of 13 of the 🤖 Agents course
On Friday, April 24, 2026, a Cursor agent running Claude Opus 4.6 deleted a startup’s production database. It hit a credential mismatch in staging, decided to “fix” it, found an over-scoped Railway...
Unsloth vs Axolotl vs LLaMA-Factory
🧭 Part 3 of the 📚 LLM Fundamentals course
You open GitHub to pick a fine-tuning framework and find three tools with tens of thousands of stars each, three Reddit threads that say three different things, and twelve Medium posts that contr...
What is Quantization?
🧭 Part 5 of 8 of the ⚡ Hardware & Inference course
Your team just spent three months fine-tuning Llama 3 70B for your customer support pipeline. The model is sharp. Accurate. Fast on your test bench. One problem: running it in production...
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