Build a Brand Voice and Tone Guide: Make Every Piece of Content Sound Like You
The sneakiest problem for a one-person brand is an inconsistent voice: casual one day, corporate the next, robotic-AI the day after. Customers never consciously notice this, but trust erodes anyway, because there's no consistent personality on the other side. It gets worse the moment you start producing content with AI: every prompt generates a different tone, so your brand sounds like a poet one day and an accountant the next. The fix is to define your voice once, in writing. This prompt extracts your brand's real personality from a few sample texts (how you talk, which words you love, what you avoid) and turns it into a reusable tone guide. From then on you add 'write according to this guide' to every AI prompt, and the output stops sounding like generic AI and starts sounding like your brand. You build it once, and it pays off in every piece of content after that. Note: this guide pairs directly with a humanizer-style pass, voice first, then de-AI-ing the draft.
You are an experienced brand strategist and editorial voice specialist. Your expertise: extracting a brand's real personality from its existing content and turning it into a reusable, concrete voice and tone guide. Your job is NOT to give generic "be professional" advice; it's to turn this specific brand's voice into concrete, usable rules. I'll give you the following: - Brand / person: [the brand's name and what it does] - Target audience: [who it speaks to] - Sample texts: [3-5 real texts that best reflect your voice: posts, emails, descriptions; paste them in their raw form] - (If no samples exist) How I want to sound: [describe your brand in a few sentences: warm or formal, playful or serious, who it should resemble] DELIVER THE OUTPUT IN THIS EXACT ORDER, WITH THESE EXACT HEADERS: ═══ VOICE SUMMARY (1 paragraph) ═══ Describe this brand's voice in a single paragraph: core personality, the overall feel of the tone, what it makes the reader feel. Write the real personality you extracted from the sample texts, not a generic ideal. ═══ WORD AND PHRASE CHOICES ═══ - Frequently used / favored words and phrases: - Mode of address: [you / we / formal you] - Sentence length tendency: [short-punchy / medium / long-flowing] - Use of technical terms: [none / where it fits / heavy] ═══ THINGS TO AVOID (banned list) ═══ The tone, words, and patterns this brand should NEVER use. Things that don't appear in the sample texts but leak into generic content anyway (corporate jargon, overhyped promises, cliche patterns). Give concrete examples. ═══ RHYTHM AND STRUCTURE ═══ How sentence and paragraph rhythm should work: variation in length, use of emphasis, number of ideas per paragraph. ═══ SAMPLE TRANSFORMATION ═══ Show the same message in two versions: (1) how it would be written in a generic/AI tone, (2) how it should be written in this brand's voice. Make the difference clearly visible. ═══ QUICK RULE SET (copy-paste ready) ═══ A summary of the guide: a list of 5-7 concrete rules that can be handed to AI for every piece of content production. I'll be attaching this to every prompt, so keep it short and written as direct commands. RULES: - If sample texts are provided, extract the voice FROM THEM; don't impose your own generic idea of "good brand voice." If the brand writes playfully, the guide should be playful too. - Don't invent brand values or a fake personality. Extract only from what's given and described. - Write the rule set so it's genuinely actionable: not abstract like "be authentic," but concrete like "address the reader as 'you,' never use em dashes." - Write in natural, direct English. The guide itself should be clear enough to serve as a sample of this brand's voice.
How to use it
- Gather your 3-5 best sample texts: the posts, emails, product descriptions, or captions that best reflect your real voice. A few strong samples beat a large pile of mixed ones. If you don't have samples yet, describe in a few sentences how you want your brand to talk instead.
- Don't accept the generated guide as final. Read it and correct it. The AI extracts a personality approximately; you sharpen it by saying 'that's not quite me, this part is too formal.' The guide only becomes a real reference once you've signed off on it.
- Save the guide somewhere (a note, a doc). From now on, add 'write according to this tone guide: [paste the guide]' to every content prompt. The AI's output stops being generic and lands in your brand's actual voice. Update the guide whenever you add a new content type.
Example / tip
Input: 4 sample LinkedIn posts (clear-authority-but-warm tone, uses technical terms, short sentences, from a consultant). AI output (shortened): VOICE SUMMARY: A 'smart friend' tone, expert but approachable. WORD CHOICES: plain English plus technical terms used where they fit (CPA, hook), direct address ('you'), short punchy sentences. AVOIDED: corporate jargon, overhyped promises, long convoluted sentences, em dashes. RHYTHM: mixed short and long, occasional single-word emphasis. SAMPLE TRANSFORMATION: Generic 'Our products offer quality solutions' becomes Brand voice 'Let's be clear: this product makes this one task easier, here's how.' QUICK RULE SET: (1) Address the reader as 'you.' (2) One idea per paragraph. (3) Don't promise, show. (4) No em dashes.
Usage example
Copy the prompt as is, fill in the bracketed fields for your own business, and paste it into ChatGPT or Claude. The more concrete your input, the more useful the output. Take the first draft, ask for a one-sentence fix on whatever you don't like, then give it a final pass in your own voice.
When not to use it
Don't force it if you have no real input to work with. A prompt doesn't fill an empty field with data, it organizes and speeds up what you already know. Never publish the output unchecked; AI sometimes produces a claim that sounds right but is wrong or made up. Always verify anything that needs proof yourself: numbers, prices, guarantees.
Output quality checklist
- Is the output specific to your input, or generic filler that fits any business? If it's generic, run it again with more concrete input.
- Does every number, ratio, or claim have something backing it? Delete the unbacked ones or soften them honestly.
- Does it sound like you? Simplify the cliches and inflated lines in your own voice.
- Does it give one clear next step? If the reader knows what to do, the output did its job.
