---
title: "consistency — Blog | Once Books"
description: "Every Once Books post tagged “consistency”."
source: "https://www.oncebooks.com/blog/tag/consistency/"
---

Topic

# Consistency

2 posts on this topic.

- [18 August 2026 · 5 min read](https://www.oncebooks.com/blog/how-the-consistency-engine-works/) — The four locks behind a consistent AI picture book Character consistency across a whole book isn’t a prompt trick. It takes four specific locks — here is each one and why it’s necessary.
- [17 August 2026 · 4 min read](https://www.oncebooks.com/blog/why-ai-picture-books-drift/) — Why AI picture books drift — and how we stop it Image models are stateless, so page four forgets page three. Here is why that happens and how a locked character sheet fixes it.

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