> For the complete documentation index, see [llms.txt](https://docs.neonblue.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.neonblue.ai/draft-experiments/variant-generation.md).

# Variant Generation

This page explains the variant generation process in the Draft Experiments tab

## Overview

The Generation tab in a draft experiment is where you will define what the creative variants will be. There are three elements to configure: variable axis, model and prompt. Selecting the model is straightforward and we will focus on explaining the variable axis and the prompt.

## Variable Axes

Th is where you will define the personalisation layer. This decides for which of your pre-defined variables you want to generate a variant for.  Each selected axis will be combined with the others to generate variants. For example if you select your 6 segments and all 3 tones, you will be generating 18 variants for each slot. Each variant tailored (if prompted correctly) to a given segment and tone combination.

<figure><img src="https://3940235945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0In3UCjZvAgYWvb8eTzO%2Fuploads%2FvA9luXQ0NGaSuf9kNPdl%2FScreenshot%202026-04-28%20at%2019.52.11.png?alt=media&amp;token=d1096379-b65c-4b18-a857-60e94f42aacb" alt=""><figcaption></figcaption></figure>

The Variable axes section is set for all slots.

## Prompt

This is the guidance for what the creatives should contain. This can vary for each slot.&#x20;

We have written about how to design a good prompt in our [Magic Prompt Writing Guide](https://docs.neonblue.ai/generating-creative/magic-prompts/magic-prompt-writing-guide-email)

## Video Demo

{% embed url="<https://www.loom.com/share/27b937796e7c471fb65f8674611731df>" %}