Hapax · The writing

Notes

This is writing that comes out of the work. We publish when something is finished, so the gaps are long.

iWorking paper · 2026

Knowing when to trust the model

Large language models produce answers without a reliable signal of how much trust those answers deserve. We are writing a practical Bayesian framework for calibrating uncertainty in LLM systems: when to act on an output, when to route it for human review, and how to measure whether the system is as well calibrated as it claims. It is written for practitioners.

Acerbi & Martin · in progress

iiCase studies

Ten worked cases are now published, each with the run behind it open to inspection. They have a section of their own.

Case studies

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