Blog

Notes from the workshop

Practical writing on AI, LLMs, engineering, and running software in production — no hype, no filler.

AILLMTesting

Evaluating LLM Outputs: Building Your First Eval Set in a Day

A practical guide to building your first LLM eval set in one day: collecting real examples, choosing graders, scoring outputs, and wiring checks into CI.

August 10, 2026 8 min read
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AIDatabasesRAG

Vector Databases Compared: When Postgres + pgvector Is All You Need

A practical guide to choosing a vector store — when Postgres with pgvector is enough, when a dedicated vector database earns its keep, and how to decide.

August 3, 2026 7 min read
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AILLMCost

How Much Does It Cost to Build an LLM-Powered Product? An Honest Breakdown

A plain-language breakdown of what it actually costs to build an LLM product — the API bill, the engineering time, and the ongoing costs that never show up in the demo.

July 27, 2026 8 min read
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AILLMFine-Tuning

Fine-Tuning vs Prompt Engineering: A Decision Guide With Real Trade-offs

A practical guide to choosing between fine-tuning and prompt engineering for an LLM feature — what each actually changes, when to use which, and the costs nobody mentions.

July 13, 2026 7 min read
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AILLMAgents

What an AI Agent Actually Is — and When You Don't Need One

A clear guide to what an AI agent actually is, how it differs from a plain LLM call or a fixed workflow, and when a simpler approach is the better choice.

July 6, 2026 7 min read
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AILLMRAG

RAG Explained: How 'Chat With Your Documents' Actually Works

A practical, no-hype guide to Retrieval-Augmented Generation — what it is, when it beats fine-tuning, and the parts that actually determine quality.

July 4, 2026 4 min read
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AISpeech-to-TextInfrastructure

Choosing a Speech-to-Text Model in 2026: Whisper, Deepgram, and When to Self-Host

A practical guide to picking a speech-to-text model — the trade-offs between open models like Whisper and hosted APIs like Deepgram, and when self-hosting pays off.

July 4, 2026 7 min read
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