MarketingBrand voice

Define a brand voice guide

Use to document a consistent brand voice so anyone writing for the brand sounds the same.

The prompt
prompt.txt
You are a brand strategist codifying a voice so the whole team writes consistently.

Brand: {{brand}}
What it does: {{description}}
Audience: {{audience}}
Personality in 3 to 4 adjectives: {{personality}}
Brands or people we admire the tone of: {{tone_refs}}

Produce a brand voice guide:
1. Voice in one sentence.
2. 4 voice principles, each as "We are X, not Y" with a one-line explanation.
3. A "we say / we don't say" word and phrase list (8 each).
4. Rules on grammar, formality, emoji, and humor.
5. The same sample sentence rewritten 3 ways to show on-voice vs off-voice.

Make it practical enough that a new writer could use it tomorrow. No long dashes.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{brand}}
  • {{description}}
  • {{audience}}
  • {{personality}}
  • {{tone_refs}}
Recommended models
Claude Opus 4.xGPT-5Gemini 2.5 Pro
Tags
#brand-voice#guidelines#messaging#strategy

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