SAB Innovation Champions

Day 0 AI Voice & Anti-AI Writing

Make AI sound like you, and keep it accurate.

Before the programme begins, set up two simple documents that tell any AI tool how you want to sound and how to stay accurate. Build them once, then use them every time you write, pitch, research or prepare ideas.

Start with your AI voice See the workflow
Overview

What you will create

Each champion creates two simple documents and reuses them everywhere.

DOCUMENT 1

My AI voice document

Tells the AI how you want to sound: your role, audience, tone, formatting and the words to avoid.

DOCUMENT 2

My anti-AI writing document

Tells the AI what to avoid, how to stay human, and how to reduce made-up claims.

Use both whenever you ask ChatGPT, Claude, Copilot, Gemini or any other AI tool to help you write, explain, pitch, research or prepare ideas.

1. Your AI voice 2. Anti-AI writing 3. No-hallucination prompts 4. Set up in ChatGPT 5. Set up in Claude 6. Which tool to use 7. Champion workflow
1 Part 1

Create your AI voice document

Your AI voice is a short guide that tells AI how you want your writing to sound. Think of it as giving AI your communication style.

A good AI voice includes

  • Who you are
  • Who you speak to
  • How you want to sound
  • How you want your writing to look
  • What words or phrases to avoid
  • A short example of your own writing
Prompt 1 Interview me to create my AI voice
I want to create my own AI voice document.

Act like a writing coach.

Ask me one question at a time.

Use these questions:
1. What is your role?
2. Who do you usually write or speak to?
3. What types of writing do you need AI to help with?
4. What 5 words describe how you want to sound?
5. What 5 words describe how you do not want to sound?
6. Do you prefer short, medium or detailed answers?
7. Should your writing feel formal, friendly, professional, direct or warm?
8. What words or phrases do you dislike?
9. What kind of examples should AI use?
10. Can you paste a short sample of writing that sounds like you?

After I answer, create a short AI voice document I can reuse.

Keep it simple, practical and easy to paste into ChatGPT or Claude.
Prompt 2 Turn my answers into an AI voice document
Turn my answers into a reusable AI voice document.

Structure it like this:
1. My role
2. My audience
3. My tone
4. My writing style
5. My formatting rules
6. Words and phrases to avoid
7. Example of my voice
8. Final instruction to AI

Keep it short.

Write it so I can paste it into ChatGPT Custom Instructions, Claude Profile Preferences, Claude Styles or a project instruction box.
Template AI voice document
My AI voice document

My role:
[I am...]

My audience:
[I usually write or speak to...]

My tone:
[I want to sound...]

My writing style:
[My writing should feel...]

My formatting rules:
- Use short paragraphs.
- Use simple language.
- Be direct.
- Give useful examples.
- Keep the answer practical.

Avoid:
- Hype.
- Jargon.
- Long introductions.
- Fake facts.
- Robotic phrases.
- Overconfident claims.

Example of my writing:
[Paste a short example here]

Final instruction:
When you write for me, use this voice. If my request is unclear, ask one useful question or make a sensible assumption and label it clearly.
2 Part 2

Create your anti-AI writing document

Anti-AI writing means the final output sounds human, clear and credible. AI often writes smoothly but empty, and it can make things up. That is called a hallucination.

What is a hallucination?

A hallucination is when AI states something as if it is true, but it has no proof. Examples:

  • Making up a statistic
  • Inventing a source
  • Guessing what a customer said
  • Creating a fake company policy
  • Claiming SAB does something without evidence
  • Saying research proves something without showing the research
Why it matters
In banking, accuracy matters. A made-up fact can damage trust.
Prompt 3 Interview me to create my anti-AI writing rules
I want to create my own anti-AI writing document.

Act like an editor.

Ask me one question at a time.

Use these questions:
1. What kind of writing do you want AI to help with?
2. What makes AI writing sound bad to you?
3. What words or phrases should AI never use?
4. What type of claims should AI be careful with?
5. What information should AI never invent?
6. How should AI handle uncertainty?
7. How should AI label assumptions?
8. How should AI mark anything that needs evidence?
9. What tone should AI use when correcting or improving my writing?
10. What final checklist should AI use before giving me an answer?

After I answer, create a short anti-AI writing document I can reuse.
Prompt 4 Create my anti-AI writing document
Turn my answers into a reusable anti-AI writing document.

Structure it like this:
1. Writing rules
2. Accuracy rules
3. No hallucination rules
4. Words and phrases to avoid
5. How to handle missing information
6. How to separate facts from assumptions
7. Final answer checklist

Keep it simple and practical.

Make it suitable for ChatGPT, Claude, Copilot or Gemini.
Template Anti-AI writing document
My anti-AI writing document

Writing rules:
- Write clearly.
- Use short paragraphs.
- Use simple language.
- Be specific.
- Give examples.
- Remove hype.
- Remove vague claims.

Accuracy rules:
- Do not invent facts.
- Do not invent numbers.
- Do not invent sources.
- Do not invent customer quotes.
- Do not invent SAB policies.
- Do not invent market data.
- Do not invent regulations.
- Do not invent competitor claims.

If information is missing:
Say: "I do not have enough evidence to confirm this."

Separate the answer into:
1. What we know
2. What we assume
3. What needs checking
4. Suggested next step

Use these labels:
[Fact]
[Assumption]
[Needs evidence]
[Risky claim]

Before finalising, check:
- Does this sound human?
- Is it clear?
- Is it specific?
- Is anything made up?
- Are assumptions labelled?
- Are risky claims marked?
- Would I feel comfortable saying this to a senior leader?
3 Part 3

No-hallucination prompts

Use these whenever the work involves facts, customers, banking, competitors, regulation, market data or research.

Prompt 5 Stop made-up facts before they happen
Before you answer, follow these rules:

Do not invent facts, sources, numbers, quotes, dates, customer evidence, SAB policies, regulations, competitor claims or market data.

If you are unsure, say:
"I do not have enough evidence to confirm this."

Separate your answer into:
1. What we know
2. What we assume
3. What needs checking
4. Suggested next step

Use clear, simple language.

Do not overclaim.
Prompt 6 Check an answer for hallucinations
Review the answer below.

Find anything that may be made up, unsupported, exaggerated or too confident.

Create a table with 4 columns:
1. Claim
2. Is it a fact, assumption or guess?
3. What evidence is needed?
4. Safer wording

Do not add new claims.

Here is the answer:
[Paste answer]
Prompt 7 Rewrite in a more human and accurate voice
Rewrite this so it sounds human, clear and practical.

Rules:
- Use short paragraphs.
- Use simple language.
- Remove hype.
- Remove vague claims.
- Remove fake confidence.
- Keep only what can be supported.
- Mark unsupported claims as [needs evidence].
- Do not add new facts.

Text:
[Paste text]
Prompt 8 Turn assumptions into tests
List the assumptions in this idea.

For each assumption, give me:
1. The assumption
2. Why it matters
3. How risky it is
4. A simple 7-day test
5. What evidence would prove or disprove it

Idea:
[Paste idea]

Labels to use in your work

[Fact][Assumption][Needs evidence][Risky claim]
4 Part 4

Set up in ChatGPT

Use ChatGPT in three ways.

OPTION 1

Custom Instructions

Best for your general writing style across everyday chats.

OPTION 2

Projects

Best for one SAB challenge, with chats and files in one place.

OPTION 3

Custom GPT

Best when you want a repeatable assistant with the same rules.

Custom Instructions, step by step

  1. Open ChatGPT.
  2. Go to Settings.
  3. Go to Personalization.
  4. Find Custom Instructions.
  5. Paste your AI voice document.
  6. Add your anti-AI writing rules underneath.
  7. Save.
Keep it safe
Do not paste confidential customer data or sensitive banking information into personal settings.
Setup ChatGPT setup prompt
Use my AI voice and anti-AI writing rules in every response.

My AI voice:
[Paste AI voice document]

My anti-AI writing rules:
[Paste anti-AI writing document]

Extra rules:
- Do not invent facts.
- Do not invent sources, numbers, customer quotes, policies, regulations or market data.
- Separate facts from assumptions.
- Mark unsupported claims as [needs evidence].
- Use short paragraphs.
- Use plain language.
- Avoid hype.
- Ask one useful question if the task is unclear.
- If you make an assumption, label it.
5 Part 5

Set up in Claude

Use Claude in three ways.

OPTION 1

Profile Preferences

Best for your general working style. Add your short AI voice document here.

OPTION 2

Styles

Best for a specific writing tone. Create a style such as "My SAB Champion voice".

OPTION 3

Project Instructions

Best for one SAB challenge developed over several chats.

Setup Claude setup prompt
Use my AI voice and anti-AI writing rules.

My AI voice:
[Paste AI voice document]

My anti-AI writing rules:
[Paste anti-AI writing document]

How to respond:
- Be clear, practical and human.
- Use short paragraphs.
- Remove hype and jargon.
- Do not invent facts.
- Do not invent numbers, sources, customer quotes, SAB policies, regulations or market data.
- Label assumptions clearly.
- Mark anything unsupported as [needs evidence].
- If information is missing, say what is missing.
- Give me a practical next step.
6 Part 6

Which tool should I use?

A simple guide to picking the right place for your documents.

Use thisWhen
ChatGPT Custom InstructionsYou want your general writing style remembered across many topics, with a consistent tone in everyday chats.
ChatGPT ProjectsYou are working on one SAB challenge and want all chats, files and notes in one place, tied to a specific idea.
Claude Profile PreferencesYou want Claude to know your general preferences and a consistent working style.
Claude StylesYou want a specific writing voice for messages, posts, emails or reports.
Claude ProjectsYou are working on one challenge over time and want instructions and material kept together.
7 Part 7

Final champion workflow

Five steps that bring it all together.

1
Create your AI voice

Use Prompt 1. Answer the questions. Save the final AI voice document.

2
Create your anti-AI writing document

Use Prompt 3. Answer the questions. Save the final document.

3
Add both to your AI tool

Use ChatGPT Custom Instructions or Projects, or Claude Profile Preferences, Styles or Projects.

4
Use both in your work

Start each important task with the prompt below.

5
Check the final output

Run the review questions. If anything is off, run Prompt 6 or Prompt 7.

Start Begin any important task
Use my AI voice and anti-AI writing rules for this task.

My task is:
[Insert task]

Check the final output

  • Does this sound like me?
  • Is it clear?
  • Is it specific?
  • Is anything made up?
  • Are assumptions labelled?
  • Are risky claims marked?
  • Would I say this to a senior leader?
Before Day 1

Your Day 0 checklist

Tick each item as you complete it. Progress is saved on this device.

0% complete
  • I created my AI voice document.
  • I created my anti-AI writing document.
  • I added both to ChatGPT or Claude.
  • I know which tool and setting to use for each task.
  • I can check an output for hallucinations before I use it.
Set your voice once, keep AI accurate, and every task after today gets faster and sounds like you.
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