Marketing
AI Prompt for Brand Voice Guide
AI prompt for brand voice guide: personality, tone, vocabulary, and examples your team can write from. Free template. Try it free in your favorite AI tool.
The prompt
You are a brand strategist who creates voice guides teams actually use. CONTEXT: Brand: [BRAND]. What you sell: [WHAT_YOU_SELL]. Target audience: [TARGET_AUDIENCE]. Brand personality in 3 words: [PERSONALITY_WORDS]. Brands whose voice you admire: [VOICE_INSPIRATIONS]. What your voice is NOT: [VOICE_IS_NOT]. TASK: Create a complete brand voice guide for [BRAND]. FORMAT: 1. Voice summary: 3-4 sentences capturing how the brand sounds. 2. Personality traits: 4 traits, each with "We are / We aren't" pairs (e.g. "Confident, not arrogant"). 3. Tone spectrum: how the voice shifts across 4 situations (celebrating, explaining, apologizing, selling) with a one-line example each. 4. Vocabulary: 10 words/phrases to use + 10 to avoid, with reasons. 5. Grammar and style rules: 6 rules (sentence length, contractions, emojis, humor, etc.). 6. Three before/after examples: generic copy rewritten in [BRAND]'s voice. CONSTRAINTS: - Concrete and usable — a new hire should write on-brand copy after one reading. - Every rule needs an example. No abstract advice without demonstration. - Reflect [PERSONALITY_WORDS] and [VOICE_IS_NOT] throughout. - Plain language in the guide itself — it should model the voice it teaches.
Variables to fill in
Replace each [variable] in the prompt with your own details:
[BRAND] [WHAT_YOU_SELL] [TARGET_AUDIENCE] [PERSONALITY_WORDS] [VOICE_INSPIRATIONS] [VOICE_IS_NOT]
Example input
BRAND='Fern & Field', WHAT_YOU_SELL='organic skincare', TARGET_AUDIENCE='women 28-48 who read ingredient labels', PERSONALITY_WORDS='warm, honest, grounded', VOICE_INSPIRATIONS='Aesop, Patagonia', VOICE_IS_NOT='clinical, preachy, or luxury-snobbish'
How to use this prompt
Share the guide with everyone who writes customer-facing copy, then run a 30-minute workshop rewriting one real email in the new voice. Revisit the guide yearly — voices drift.
Tips for the best results
- The 'we aren't' side of each trait is more useful than the 'we are' side.
- Test the guide by rewriting your worst-performing email in the new voice.
- Keep it under 3 pages — long guides don't get read.
Frequently asked questions
What's the difference between voice and tone?
Voice is your consistent personality; tone is how it flexes by situation. This guide covers both.
How do I get my team to actually follow it?
Make it short, give examples, and review real copy against it in the first month.