Working with LLMs

Context, prompts, structured output and the failure modes worth knowing.

The context window is a budget, not a memory
The context window is a budget, not a memory
02/09/2026 — admin@byqreal.test

Bigger context windows did not give models memory. They gave you a larger envelope to fill on every single request — and...

Why models hallucinate, and what actually reduces it
Why models hallucinate, and what actually reduces it
31/08/2026 — admin@byqreal.test

Hallucination is not a glitch that a better model will one day remove. It is what generation does when it has nothing to...

System prompts: the instructions the user never sees
System prompts: the instructions the user never sees
29/08/2026 — admin@byqreal.test

A system prompt sets the rules for everything that follows. Written well it is the cheapest quality improvement availabl...

Structured output beats parsing prose
Structured output beats parsing prose
27/08/2026 — admin@byqreal.test

If your code needs a value from a model, ask for JSON and validate it. Regexing an answer out of a paragraph is a bug wa...

Choosing between a large model and a small one
Choosing between a large model and a small one
25/08/2026 — admin@byqreal.test

Most production traffic does not need the largest model available. Routing by task rather than defaulting to the top of...