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Create a brand voice and tone guide

A usable voice guide: personality, do/don’t examples, vocabulary and tone shifts by channel.

This is a practical, copy-paste process for several people (or ai tools) write for the brand and it sounds inconsistent.. Use it when you want a clear structure, then add your own details and the linked evidence.

Published by Deepstory Research. Reviewed Sep 2026.

How to use this method

  1. 1. Copy or downloadCopy the prompt below, or download the method file and attach it to your chat.
  2. 2. Paste into any AIChatGPT, Claude, Gemini or Copilot. Replace each [PLACEHOLDER] with your details, or let the AI ask you.
  3. 3. Add evidenceAttach the evidence files listed on this page so the AI works from sourced numbers, not guesses.

The prompt

Paste it as-is. The AI will ask for anything still in [BRACKETS].

Download .md
# Create a brand voice and tone guide
Method by Deepstory Research: deepstoryresearch.com/method/brand-voice-guide

You are a brand copy chief. Follow the method below step by step. Goal: A usable voice guide: personality, do/don’t examples, vocabulary and tone shifts by channel.

## My inputs
- Brand: [BRAND]  (example: premium Indian spice brand)
- Audience: [AUDIENCE]  (example: home cooks 25–45)
- Examples of copy you like: [EXAMPLES_OF_COPY_YOU_LIKE]  (example: paste 2–3)
- Words to avoid: [WORDS_TO_AVOID]  (example: exotic, authentic)

Before you start: if any input above is still in [BRACKETS] or missing, ask me for it in one short numbered list and wait. Do not guess. If I attached files (data, briefs, Deepstory evidence files), treat them as the primary source.

## Steps to follow
1. Define 3–4 voice traits with "this, not that".
2. Write do/don’t examples for each trait.
3. Build a vocabulary list: preferred, banned, product terms.
4. Show tone shifts for website, social, email, support, crisis.
5. Rewrite one sample paragraph in the new voice.

## Deliver the output in this structure
- Voice traits
- Do/don’t examples
- Vocabulary list
- Tone by channel
- Before/after sample
- One-paragraph AI instruction version of the guide

## Quality rules
- Examples must be specific to this brand, not generic.
- Label every number as FACT (with source and date), ESTIMATE (show the calculation) or ASSUMPTION.
- If a Deepstory evidence file is attached, use its figures as the reference values and cite its source references; tag claims that are not from it as [UNVERIFIED].
- End with: the 3 assumptions that matter most, what would change the answer, and the single best next step.

What you need to give the AI

InputPlaceholderExample
Brand[BRAND]premium Indian spice brand
Audience[AUDIENCE]home cooks 25–45
Examples of copy you like[EXAMPLES_OF_COPY_YOU_LIKE]paste 2–3
Words to avoid[WORDS_TO_AVOID]exotic, authentic

Use it when

  • Several people (or AI tools) write for the brand and it sounds inconsistent.

What you get

  • Voice traits
  • Do/don’t examples
  • Vocabulary list
  • Tone by channel
  • Before/after sample
  • One-paragraph AI instruction version of the guide

The procedure, step by step

Read this before you run it, so you can check the AI actually followed the method.

  1. 1

    Define 3–4 voice traits with "this, not that".

  2. 2

    Write do/don’t examples for each trait.

  3. 3

    Build a vocabulary list: preferred, banned, product terms.

  4. 4

    Show tone shifts for website, social, email, support, crisis.

  5. 5

    Rewrite one sample paragraph in the new voice.

Quality checks built into the prompt

  • • Examples must be specific to this brand, not generic.
  • • Every number labelled FACT, ESTIMATE or ASSUMPTION; claims outside attached evidence tagged [UNVERIFIED].

Evidence to use with this method

Methods tell the AI how to think. Evidence gives it sourced numbers to think with. Download a context file and attach it with the prompt.

Run next

Methods that chain well after this one.

Deepstory methods are process guidance for AI tools. Review AI output before relying on it; legal, tax, medical and investment decisions need a qualified professional.