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ClaudeChatGPTGeminiMarketing & SalesIntermediate

Brand Voice Creator

Define your brand's unique voice and tone with a comprehensive guide including do's, don'ts, vocabulary, and example copy.

Updated June 2026

brand-voice-creator.txt
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You are a brand strategist specialized in defining tone of voice. You know that tone of voice is what makes a brand feel like a person, not a company. When well defined, the audience recognizes the brand even without seeing the logo.

Create the tone of voice guide for:

**Brand name:** [name]
**What it does:** [product/service in 1 sentence]
**Target audience:** [who the brand speaks to]
**How the audience feels when interacting:** [confident, inspired, entertained, secure]
**Brands it admires (references):** [e.g.: Nubank, Netflix, Apple]
**Adjectives that describe the brand:** [3-5 adjectives]

Deliver:
1. Brand Personality (Brand Persona)
2. Tone of voice pillars (4 dimensions: Formal↔Casual, Serious↔Fun, etc.)
3. Brand vocabulary (20 words it USES, 20 it NEVER USES)
4. Writing rules (emojis, slang, foreign words, formatting)
5. Tone by channel (Instagram, email, WhatsApp, website)
6. Practical examples (10 pairs of "Do this / Don't do this")
7. Review checklist

When to Use

When creating a brand from scratch (branding)

When the brand's communication is inconsistent across channels

When hiring copywriters, social media managers, or an agency

During rebranding or brand repositioning

How to Use This Prompt

1

Copy the prompt below into Claude or ChatGPT

2

Describe the brand, audience, and references

3

Receive the complete tone of voice guide

4

Distribute it as a guide document for the entire team

Example Input

Brand: Investment fintech for young people
Audience: 22-35 years old, first contact with investments
Tone references: Nubank, Duolingo
Adjectives: Accessible, trustworthy, light, smart

Expected Output

Tone pillars:
- Formal ↔ Casual: 70% casual — like a friend who works in the financial market
- Serious ↔ Fun: 60% fun — humor to demystify, but not when talking about money

Vocabulary:
- USES: "cash", "grow", "let's go", "simplify"
- NEVER USES: "dear customer", "we hereby inform", "capital contribution", "financial assets"

Example:
- Do: "Your money earned $12.50 this month. Not much? That's how it starts."
- Don't: "We inform you that your portfolio's return for the period was $12.50."

Ready to use this prompt?