- 31 August 2026 · 7 min
What a prompt change actually costs
Everyone asks whether the cheaper prompt hurt quality, and almost nobody answers with evidence. Most of the difficulty turns out to be statistical, not architectural.
- 28 August 2026 · 7 min
Free tiers are a design constraint, not a discount
What changes when zero infrastructure spend is a hard requirement — including running a consumer product's LLM layer entirely on free open-weight models, and the measurements that made it work.