Using AI to write your bio text: 8 prompts for a profile that converts

AI can write a bio in 30 seconds that converts better than what you'd craft in an hour — provided you give it the right prompt and critically edit the output. The eight templates in this article give you a starting point for bios, button text, and CTAs; the editing checklist prevents you from publishing generic AI rubbish. Jump to the 5-step checklist to get started immediately.

Definitions: prompt, brand voice, CTA, and A/B test

Prompt

In one sentence: The text instruction you give an AI model to get a specific response — the more specific the prompt, the more usable the output.

Brand voice

In one sentence: The consistent tone, word choice, and personality with which your brand communicates, regardless of channel or medium.

CTA (Call-to-Action)

In one sentence: A short, activating text that prompts visitors to take a specific action, such as "Book now" or "Download free".

A/B test

In one sentence: An experiment where you show two variants (A and B) to different visitors to measure which performs better on a predetermined metric.

Bio link page

In one sentence: A landing page with multiple clickable links that you share via your "link in bio" on social platforms.

Token

In one sentence: The basic unit AI models use to process text — roughly 4 characters or three-quarters of a word in English.

Why use AI for your bio text?

Short answer: AI breaks through writer's block, generates multiple variants in seconds, and helps you step back from your own assumptions about what "sounds good".

Most creators stare at an empty input field for minutes. Your bio needs to explain who you are, what you do, and why someone should click — all in 150 characters. That's an impossible task when you're simultaneously trying to be creative, authentic, and conversion-focused.

AI solves three problems:

1. Volume: You get ten variants where you choose one and combine elements.
2. Objectivity: A model has no emotional attachment to your existing bio.
3. Structure: Good prompts enforce a formula (problem → solution → action) that you might otherwise skip.

But — and this is crucial — AI is a starting point, not a destination. The rest of this article shows how to write prompts that produce usable output and how to edit that output into something that actually sounds like you.

How do you capture your brand voice in a prompt?

Short answer: Describe your tone with three to five adjectives, give an example of a sentence that "sounds like you", and specify words you do and don't use.

The biggest mistake creators make: they ask "write a bio for me" without context. The result is generic marketing language that doesn't sound like anyone specific.

An effective brand voice section in your prompt contains:

Element	Example	Why it works
Tone adjectives	"Direct, slightly ironic, knowledgeable"	Gives the model an emotional compass
Example sentence	"No fuss, just results."	Shows rhythm and word choice concretely
Forbidden words	"Never: passion, unique, solutions"	Prevents clichés that weaken your brand
Allowed informal language	"May use: gonna, awesome, btw"	Determines how casual output can be
Target audience description	"UK freelancers, 25-40 years old"	Steers relevance and form of address
Maximum length	"Bio max 150 characters"	Prevents unusably long output

Save this brand voice section as a text block. You copy it into every prompt so all output stays consistent — whether you're generating a bio, button text, or Instagram caption.

The 8 prompt templates: bios, buttons, and CTAs

Short answer: Below you'll find eight copy-paste prompts for ChatGPT, Claude, or Gemini. Each template has a specific purpose and contains placeholders you replace with your own information.

Prompt 1: The core bio (150 characters)

You are a copywriter specialising in social media bios.

My context:
- Name: [YOUR NAME]
- What I do: [SHORT DESCRIPTION, e.g. "fitness coaching for busy mums"]
- My tone: [3-5 ADJECTIVES, e.g. "warm, direct, no-nonsense"]
- Example sentence that sounds like me: "[YOUR EXAMPLE]"
- Words I avoid: [LIST]
- Target audience: [DESCRIPTION]

Write 5 variants of an Instagram bio. Each variant:
- Maximum 150 characters
- Starts with what I do for the reader (not with my name)
- Ends with a soft CTA or promise
- Uses no emojis unless I explicitly ask

Provide the variants as a numbered list.

Prompt 2: The authority bio

Write a bio that emphasises my expertise without sounding arrogant.

My credentials:
- [CREDENTIAL 1, e.g. "10 years experience in UX design"]
- [CREDENTIAL 2, e.g. "worked for Spotify, Deliveroo, ASOS"]
- [CREDENTIAL 3, e.g. "trained 500+ students"]

My tone: [COPY YOUR BRAND VOICE SECTION]

Write 4 variants, each max 160 characters. Avoid:
- "Expert in..."
- "Passionate about..."
- Lists of company names without context

Prompt 3: The problem-solution bio

Write a bio following this structure:
1. The problem my target audience has (max 60 characters)
2. How I solve it (max 50 characters)
3. What they should do (max 40 characters)

My context:
- Problem: [e.g. "creators lose followers due to boring bios"]
- My solution: [e.g. "I write bios that convert"]
- Desired action: [e.g. "DM for free review"]

My tone: [BRAND VOICE SECTION]

Provide 5 variants that contain all three elements within 150 characters total.

Prompt 4: Button text for your bio link page

I have a bio link page with the following links:
1. [LINK 1: e.g. "Free e-book about meal prep"]
2. [LINK 2: e.g. "My coaching programme"]
3. [LINK 3: e.g. "YouTube channel"]
4. [LINK 4: e.g. "Podcast episode about discipline"]
5. [LINK 5: e.g. "Instagram DM for questions"]

Write 3 button text variants for each link:
- Variant A: Descriptive (says what it is)
- Variant B: Benefit-driven (says what the reader gets)
- Variant C: Action-driven (starts with a verb)

Each button text max 25 characters. My tone: [BRAND VOICE SECTION]

Prompt 5: The urgency CTA

Write 6 CTA sentences that create urgency without being shouty.

Context:
- What I offer: [e.g. "1-on-1 coaching sessions"]
- Why now: [e.g. "only 3 spots left this month"]
- My tone: [BRAND VOICE SECTION]

Avoid:
- "NOW" in capitals
- Fake scarcity ("last chance" when that's not true)
- Exclamation marks

Each CTA max 50 characters.

Prompt 6: The social proof CTA

Write CTAs that integrate social proof.

My proof:
- [e.g. "2,000+ newsletter subscribers"]
- [e.g. "4.9 stars across 89 reviews"]
- [e.g. "Recommended by [WELL-KNOWN NAME]"]

Write 2 CTA variants for each proof point:
- One that leads with the proof
- One that uses the proof as support

Max 60 characters per CTA. My tone: [BRAND VOICE SECTION]

Prompt 7: The low-barrier first step

My goal is for visitors to [ACTION, e.g. "download my free PDF"].

Write 5 CTAs that make the barrier as low as possible:
- Emphasise that it's free/quick/easy
- Avoid commitment language ("sign up", "register")
- Use action verbs that feel light

Max 35 characters per CTA. My tone: [BRAND VOICE SECTION]

Prompt 8: Generate A/B test variants

Here is my current bio:
"[PASTE YOUR CURRENT BIO]"

Generate 4 variants that each change one element:
1. Variant A: Different opening (start with a question)
2. Variant B: Different CTA (focus on curiosity instead of action)
3. Variant C: Different tone (more formal/informal than original)
4. Variant D: Different structure (problem-solution instead of feature-benefit)

Keep the core message intact. Max 150 characters per variant.
Explain in one sentence what you changed and why it might work.

How do you effectively edit AI output?

Short answer: AI text is a first draft, not publishable copy. You edit in three rounds: fact-check, brand voice check, and readability check.

The temptation to copy AI output directly is strong. Don't do it. Here's a systematic approach:

Round 1: Fact-check

• Is every number the model mentions accurate?
• Do I actually have those credentials?
• Is the promise deliverable?

Round 2: Brand voice check

• Would I say this out loud in a conversation?
• Are there words I normally wouldn't use?
• Does it sound like me or like "a marketer"?

Round 3: Readability check

• Do I understand what it says in 3 seconds?
• Are there unnecessary words?
• Is the CTA clear?

Concrete example — AI generates:

"Transform your health with proven strategies and personalised guidance from a certified coach."

After editing:

"Get fitter without crash diets. I'll help you step by step."

The second version is shorter, more specific, and sounds more human. That's the difference between AI output and a usable bio.

What AI bio mistakes should you avoid?

Short answer: Generic superlatives, impersonal language, and promises without proof are the three deadliest AI bio mistakes.

Mistake	Example	Why it fails	Better approach
Empty superlatives	"The best coaching experience"	Everyone claims this; it says nothing	Specific result: "80% of my clients reach their goal in 12 weeks"
Passive language	"Growth is being worked on"	Distant, no ownership	Active: "I help you grow"
Feature dump	"Coach, speaker, author, podcaster"	Fragments attention, no focus	One main role: "Fitness coach. I also write."
Buzzword bingo	"Creating synergy through holistic approach"	Nobody talks like this in real life	Concrete language: "I combine nutrition and training"
Vague CTA	"Get in touch"	No clear next step	Specific: "DM me 'START' for a free plan"
First-person overload	"I am... I help... I believe..."	Reader-centric writing converts better	Start with "you": "Want to... I'll help..."
Fake urgency	"Last chance!" (when it isn't)	Damages trust permanently	Real scarcity or no urgency at all
Excessive emojis	"🚀💪✨🔥 Coach for WINNERS"	Looks like spam	Max 1-2 functional emojis

How do you A/B test bio variants?

Short answer: Switch your bio weekly, measure click-through rate to your most important link, and keep all other variables constant.

A/B testing bios is trickier than testing ads because you can't do a controlled split — you can't show two bios simultaneously. The solution: sequential testing with discipline.

Step-by-step plan for bio A/B tests

1. Choose one metric: Click-through rate to your bio link page, or clicks on your most important button.
2. Determine test duration: Minimum 7 days per variant to average out daily fluctuations.
3. Keep other factors constant: Don't post significantly more or less during the test.
4. Document: Screenshot your bio + date + results in a simple spreadsheet.
5. Test one element: Change only the opening, or only the CTA — not both at once.

LinkDash shows click analytics per button, so you can immediately see which CTA text performs better. Combine that with profile views (via Instagram Insights or TikTok Analytics) for a complete picture.

Scenarios per creator type

Scenario 1: Content creator with product line

You have a YouTube channel and sell merchandise or digital products. Your bio needs to balance personal brand and commerce.

Approach: Use prompt 3 (problem-solution) for your main bio, and prompt 4 (button text) with variant B (benefit-driven) for your shop link. Avoid making your bio sound like an advertisement — lead with value, not "buy now".

Scenario 2: Freelancer acquiring clients

Your LinkedIn and Instagram are acquisition channels. Every profile visitor is a potential client.

Approach: Prompt 2 (authority bio) combined with prompt 6 (social proof CTA). Specify results you've achieved for clients, not just your skills. "I increased conversion by 40% for 12 e-commerce clients" works better than "Conversion optimisation expert".

Scenario 3: Coach or consultant

You sell your time and expertise. Trust is the most important conversion factor.

Approach: Start with prompt 1 (core bio) to clarify your niche, then use prompt 7 (low-barrier first step) for your CTA. A free discovery call or PDF lowers the barrier more than "Book a session for £150".

Scenario 4: E-commerce entrepreneur

Your Instagram is a shop window for your online store. The bio must drive traffic to products.

Approach: Prompt 5 (urgency CTA) works best here — provided the urgency is real. Combine with prompt 4 variant C (action-driven button text): "Shop the new collection" is stronger than "Our products".

Scenario 5: Newsletter writer or blogger

Your most important conversion is email subscribers. Every bio visitor should go to your sign-up page.

Approach: Prompt 3 (problem-solution) with your solution being "I send weekly X" and the CTA being the sign-up. Emphasise frequency and format: "One practical tip in your inbox every Tuesday" is more concrete than "Subscribe to my newsletter".

5-step checklist: from prompt to published bio

1. Write your brand voice section — 3-5 adjectives, example sentence, forbidden words, target audience. Save this as a text block.
2. Choose the right prompt — Core bio for Instagram, authority bio for LinkedIn, problem-solution for landing pages.
3. Generate 5+ variants — Ask the model for multiple options. Choose and combine the best elements.
4. Edit in 3 rounds — Fact-check, brand voice check, readability check. Read aloud.
5. Test and iterate — Publish, measure for 7 days, switch variant, measure again. Document what works.

Edge cases and grey areas

"My niche is too specific for AI to understand"

Give the model more context. Add 2-3 sentences explaining your niche as if you were telling someone outside your field. AI models perform better with explicit explanation than with jargon.

"The output sounds too American"

Add explicitly: "Write in British English with an understated, European tone. Avoid American enthusiasm ('amazing', 'awesome', 'game-changer')." You can also provide an example of a British sentence you like the sound of.

"I don't have credentials to mention"

Credentials don't have to be qualifications. Years of experience, number of people helped, number of posts/videos made, communities you're part of — anything that adds credibility counts. Start with what you have.

"The bios are too long for TikTok"

Add to your prompt: "Maximum 80 characters" (TikTok's limit). Ask the model to choose: either what you do, or who for, or the CTA — not all three. TikTok bios are necessarily minimalist.

"I want emojis but the model overdoes it"

Specify exactly: "Use maximum 2 emojis, only at the beginning or end, choose from: [✨, →, 📩]." Without boundaries, AI will escalate emoji count.

"Multiple AI tools give different results"

That's normal and useful. ChatGPT, Claude, and Gemini have different "personalities". Generate variants in multiple tools and pick the best elements from each. The prompt templates work in all three.

Note: AI models can hallucinate — made-up facts, credentials you don't have, or results that aren't accurate. Check every output for factual accuracy before publishing.

Disclaimer and sources

This article offers practical guidelines for using AI when writing bio text. Results vary by niche, target audience, and platform. The effectiveness of specific phrasings depends on your unique context — always test with your own audience.

AI-generated text should always be checked for factual accuracy, brand consistency, and tone before you publish. The author is not responsible for results arising from using unedited AI output.

Sources:

• OpenAI Prompt Engineering Guide
• Anthropic Claude Prompt Engineering Documentation
• Google AI Prompt Best Practices
• Instagram Help Center — Profile Guidelines
• TikTok Support — Account Settings

Frequently asked questions

What is a prompt for AI?

A prompt is the text instruction you give an AI model to get a specific response — the more specific the prompt, the more usable the output. For bios, this means providing context about your brand, tone, target audience, and desired length.

What is a brand voice?

Brand voice is the consistent tone, word choice, and personality with which your brand communicates, regardless of channel or medium. You capture it with adjectives, example sentences, and lists of words you do and don't use.

What is a CTA in a bio?

CTA stands for Call-to-Action: a short, activating text that prompts visitors to take a specific action, such as "Book now" or "Download free". In bios, the CTA is often the final element that determines whether someone clicks.

What does A/B testing bios mean?

A/B testing bios is an experiment where you alternately publish two variants and measure which performs better on a predetermined metric, such as click-through rate to your bio link page.

Which AI tool is best for writing bios?

ChatGPT, Claude, and Gemini are all suitable. They have different "personalities" — ChatGPT is often more enthusiastic, Claude more understated, Gemini varies. Use the same prompt in multiple tools and combine the best elements.

How many characters can an Instagram bio be?

Instagram bios have a limit of 150 characters. This forces you to choose: focus on what you do, who for, or the CTA. The best bios combine all three within that limited space.

How do I prevent AI bios from sounding generic?

Provide extensive context in your prompt: brand voice section with adjectives, example sentences, forbidden words, and specific information about your niche. The more unique details, the less generic the output.

Should I always edit AI output?

Yes. AI text is a first draft, not publishable copy. Edit in three rounds: fact-check (is everything accurate?), brand voice check (does this sound like me?), and readability check (do I understand this in 3 seconds?).

How long should I test a bio variant?

Minimum 7 days per variant to average out daily fluctuations. Keep other factors constant — don't post significantly more or less during the test. Document results in a spreadsheet.

Can AI also write button text for my link page?

Yes. Use prompt 4 from this article and provide a list of your links. Ask for three variants per link: descriptive, benefit-driven, and action-driven. Test which converts best via your analytics.

What if my niche is too specific for AI?

Add 2-3 sentences of context explaining your niche as if you were telling a layperson. AI performs better with explicit explanation than with jargon the model may not know or may misinterpret.

How do I measure if my new bio works better?

Combine platform-specific analytics (Instagram Insights, TikTok Analytics) with your bio link page analytics. LinkDash shows clicks per button, so you can see which CTA text converts best towards your desired action.

Conclusion and next step

AI is a powerful first-draft machine for bios, button text, and CTAs — but the magic is in the editing. Use the eight prompts as a starting point, apply your brand voice section consistently, and test variants with real data.

The best bio isn't the cleverest or most creative. It's the bio that understands your target audience, builds trust, and prompts action. AI helps you get to that version faster.

Read more:

• Anatomy of a bio link page that converts
• Link-in-bio strategy: from profile to conversion