How to Use AI to Create Your Next Social Media Post

A Step-by-Step Guide for NZ Small Business

Staring at a blank screen is a pain every business owner knows well. You know you need to post something to keep your feed alive, but between managing staff, sorting out accounts, and actually doing the work, finding the time to come up with creative ideas feels impossible. This is where AI for small business comes in. It’s not about replacing your unique Kiwi voice; it’s about having a clever assistant ready to do the heavy lifting.

If you are looking to save time and create engaging social content that actually stops the scroll, you are in the right place. In this guide, we’re going to walk through exactly how to use AI to create your next social media post. We will cover everything from brainstorming post ideas to generating the images and captions that get your customers talking. Whether you run a cafe in Wellington, a trades business in Christchurch, or an e-commerce store in Auckland, this guide will get your social media sorted.

Why AI is a Massive Opportunity for Kiwi Business

Before we jump into the “how,” let’s talk about the “why.” For a long time, high-level marketing tools were only for the big players with deep pockets. New AI tools have levelled the playing field. Using AI to create content means you can produce a week’s worth of social media posts in the time it usually takes to drink your morning flat white.

But it’s not just about speed. It’s about consistency. The algorithm loves consistency, but maintaining it is hard when you’re wearing ten different hats. An AI tool helps you generate social media posts that are consistent in tone and quality, ensuring your brand stays top-of-mind without burning you out.

What AI Can (and Can’t) Do

AI can generate social media captions, suggest content ideas, create visual content, and even help you schedule social media posts if integrated with the right platforms. However, it can’t replace your relationship with your customers. It doesn’t know what happened at the local rugby game last weekend unless you tell it. The magic happens when you combine the efficiency of AI features with your local knowledge.

Step 1: define Your Brand Voice (Don’t Skip This!)

Most people get poor results from AI because they ask generic questions. If you ask a free AI social media post generator to “write a post about coffee,” it will sound like a robot. To get compelling social content, you need to teach the AI who you are.

Building Your Persona

Think about your brand voice. Are you cheeky and casual? Professional and authoritative? Warm and community-focused?

Before you ask the AI to create content, feed it a “context prompt.” It might look like this:

“I run a boutique landscaping business in Hamilton, New Zealand. We target homeowners who want low-maintenance native gardens. My tone of voice is friendly, practical, and knowledgeable, using NZ English spelling. I avoid corporate jargon. I want to use AI to help me write engaging social posts.”

By doing this, you ensure the AI to generate your content understands the target audience—Kiwis who want nice gardens, not American suburbanites. This small step ensures the content for every post feels authentic to your business.

PRO TIP: Let AI Define Your Voice For You

Struggling to put your business’s “vibe” into words? Don’t stress—let the AI do the heavy lifting.

Instead of guessing, you can upload a document (like a PDF of your past newsletters or a screenshot of your best captions) or simply paste the URL of your website (if you are using a web-connected tool like Google Gemini, ChatGPT Plus or Perplexity).

Once you have provided the source material, use this prompt to get a ready-made style guide:

“I have attached [a document/URL] containing examples of my business content. Please analyse this text and create a comprehensive Brand Voice Summary. Include details on my tone, sentence structure, vocabulary choices, and perspective. Finally, write a short ‘Context Instruction’ that I can paste at the start of our future chats to ensure you write exactly like this.”

Step 2: Generate Endless Social Media Post Ideas

The hardest part of content creation is often just coming up with the idea. You can use AI to get the ball rolling.

The Brainstorming Prompt

Open up your AI LLM of choice (current top content models that offer free access levels include Google Gemini, ChatGPT, Grok and Claude) and try this:

“Act as a social media expert. I need 10 social media post ideas for my [plumbing] business. I want a mix of educational tips, behind-the-scenes content, and humour. Please focus on problems homeowners face in winter. My target audience is [Christchurch homeowners].”

The AI will list ideas like “How to prevent frozen pipes” or “A day in the life of a tempting blocked drain.” If you don’t like them, just say “give me 5 more post ideas but make them funnier”, or “… make them non-obvious” (or any other qualifier that suits your business personality.

Leveraging ‘People Also Ask’

You can also ask the AI to find questions your customers are asking.

“What are the top 5 questions New Zealanders ask about heat pump maintenance? Use these to generate social media post ideas.”

This ensures your content marketing is answering real questions, which is great for building trust.

PRO TIP: Don’t Settle for Just One “Brain”

Different AI models have different personalities. Some are more creative, while others are better at logic or current trends. To get the absolute best post ideas, don’t just rely on one tool.

Try feeding your prompt into a few different heavy hitters at the same time—like Google Gemini, ChatGPT, Claude, Grok, Meta AI, DeepSeek, or Mistral.

You will find they all give slightly different answers. Claude might give you a more natural, human-sounding angle; Grok might offer something edgier; and Gemini often shines with up-to-date info. Open a few tabs, run the same command, and then cherry-pick the best ideas from each list to build a killer content plan.

Step 3: Drafting the Perfect Caption

Now you have an idea, let’s turn it into a social media post.

The ‘Golden’ Formula for Prompts

To generate social posts that convert, your prompt needs four things:

  1. Role: Who is the AI? (e.g., “You are a copywriter”).

  2. Task: What are you making? (e.g., “Create engaging social captions”).

  3. Context: The topic and audience.

  4. Format: Length, style, hashtags.

Example Prompt:

“Write an Instagram caption about our new gluten-free brownie. It should be under 100 words, use emojis, and include a call to action asking people to tag a friend who needs a treat. Use a conversational tone suitable for a cafe in Dunedin.”

Platform Specifics

Different social platforms have different “languages.” What works on Facebook might flop on TikTok. Here is how to instruct your AI assistant to tailor content for each one:

  • Instagram: This is your digital shop window. It’s all about the “aesthetic” and stopping the scroll.

    • Core Elements: High-quality visual content, a “hook” in the first sentence (since the rest gets hidden behind ‘more’), 3-5 relevant hashtags, and a clear Call to Action (e.g., “Tap the link in bio”).

    • Prompt Tip: Ask the AI for “a short, punchy caption with a lifestyle vibe. Include a question to drive comments and a set of 30 relevant hashtags for a New Zealand audience.”

  • LinkedIn: It’s not just for CVs anymore; it’s the B2B powerhouse.

    • Core Elements: Professional but personal storytelling, valuable insights or “lightbulb moments,” and clear formatting (short paragraphs). It loves a good “lessons learned” story.

    • Prompt Tip: Ask for a “thought leadership post. Start with a contrarian statement or a surprising statistic about [industry]. Use short sentences for readability and end with a question to encourage debate among professionals.”

  • Facebook: The local community hub. It’s a bit more relaxed and conversational, perfect for building trust with locals.

    • Core Elements: Community-focused stories, shareable advice, direct links (which you can’t easily do on Insta), and slightly longer captions that tell a story.

    • Prompt Tip: Instruct the AI to write a “conversational, story-driven update. Focus on community values and include a direct link to our booking page. Tone should be warm and helpful, like chatting to a neighbour.”

  • TikTok: Entertainment first, sales second. The “caption” is often less important than the video concept or script.

    • Core Elements: A 3-second visual hook, raw/authentic vibes (less polished), and SEO-heavy keywords in the caption to help people find you in search.

    • Prompt Tip: Don’t just ask for a caption; ask for a script. “Act as a video director. Write a 30-second script for a TikTok video about [product]. Include a funny opening hook, visual cues for what I should film, and a caption optimized with keywords for search.”

  • Twitter / X / Threads: The digital town square. It’s about real-time updates, witty one-liners, and joining the conversation.

    • Core Elements: Brevity (short character counts), “Threads” (stringing multiple posts together to explain a concept), and a distinct lack of fluff.

    • Prompt Tip: “Write a ‘Thread’ of 5 tweets explaining [topic]. The first tweet must be a catchy hook. Keep each tweet under 280 characters and use a punchy, direct tone.”

  • Pinterest: Think of this less as social media and more as a visual search engine (like Google but with pictures).

    • Core Elements: Vertical images, keyword-rich titles, and descriptions that solve a problem or offer inspiration. Links are crucial here.

    • Prompt Tip: “Write a Pinterest title and description for [product]. Focus heavily on SEO keywords that a Kiwi homeowner might search for (e.g., ‘small garden ideas NZ’). Make it sound inspiring.”

 

PRO TIP: CLONE EXISTING CONTENT

If you have existing content (like a blog post or a newsletter), paste it into the AI and ask it to “repurpose this piece of content into 3 different social media posts.” This is the fastest way to create content without starting from scratch.

Step 4: Create Visual Content with AI

A great caption is useless without a great image. While stock photos are okay, AI-generated images can be tailored exactly to your needs.

Using Tools like Canva and Midjourney

Canva has fantastic AI features built-in (Magic Media). You can enter a prompt like:

“A flat white coffee on a rustic wooden table, morning sunlight, cozy atmosphere, photorealistic.”

This allows you to create visuals to match your caption perfectly. If you are selling a service (like consulting) and don’t have photos of yourself, you can use AI to create clean, abstract backgrounds or infographics that align with your brand colours.

Warning: Be careful with faces and hands in AI images—they can sometimes look a bit odd. For local businesses, real photos of your team or product are always best, but AI features can help you edit them, expand the background, or improve the lighting in seconds.

PRO TIP: BRAND STYLE – Clone Your Visual Identity

Getting AI to match your brand’s specific “look” can be tricky if you just rely on words. Instead of trying to describe your aesthetic, show it.

Take your best product photos, your logo, and a few of your top-performing Instagram posts, and upload them to Google Gemini or ChatGPT (or simply paste your website URL). Then, ask the AI to reverse-engineer your style into a guide you can use forever.

Try this prompt:

“I have uploaded 5 representative images of my brand [or inserted my website URL]. Please analyse the visual style, colour palette, lighting, and composition. Create a Visual Brand Style Guide describing these elements in detail. Then, write a ‘master prompt’ that I can use to generate new images that look exactly like they belong to this same collection.”

Step 5: The ‘Kiwi’ Polish (Refining Your Content)

This is the most critical step. You cannot just copy and paste what the bot gives you. To rank well and connect with humans, you must refine the output.

How to Humanise AI Content

  1. Check the Spelling: Ensure it hasn’t used American spellings (like ‘color’ or ‘optimize’ with a z, though ‘ise’ is standard here).

  2. Add Local Flavour: Swap out generic terms. If the AI says “vacation,” change it to “holiday” or “trip away.” If it says “friends,” maybe change it to “mates” if that fits your brand.

  3. Fact Check: AI can hallucinate. If it claims a specific law or stat about NZ business, verify it.

  4. Inject Personality: Add your specific sign-off or a reference to the local weather.

Remember, the goal is to use AI to create a draft, not the final product. You are the editor.

PRO TIP: Trust, But Verify with Perplexity

AI is brilliant, but it can sometimes “hallucinate” facts—inventing statistics or referencing laws that don’t exist. Before you hit publish, give your content a final reality check.

Use Perplexity AI as your dedicated fact-checker. It’s built to search the live web and provide citations, making it perfect for validation. Simply upload your document or copy and paste your draft into the chat.

Use a prompt like this to catch errors:

“I have pasted a draft social media post below. Please fact-check every claim, statistic, and date mentioned. Specifically, verify that any information regarding New Zealand regulations or local data is accurate and current. If you find any errors, provide the correct information and cite the reliable source.”

Best Tools to Generate Social Media Posts

There is a plethora (oops, that’s an AI word—let’s say “heaps”) of tools out there. Here are the best ones for a small business budget.

1. ChatGPT (OpenAI)

The most popular AI tool. The free version is powerful enough to generate social media captions, brainstorm ideas, and plan strategies. It’s great for text-based tasks. The latest version of Google Gemini is also great for thinking and writing.

2. Canva

Ideal for visual content. Their Magic Write tool can also help with captions, making it a one-stop-shop to create social media graphics and text together.

3. Buffer / Hootsuite

These scheduling tools now have AI assistants built-in. They can help you remix content and generate social posts directly in the scheduling window.

4. Claude

Known for being a bit more natural and “human-sounding” than ChatGPT. It’s excellent if you want to write longer LinkedIn articles or detailed Facebook updates.

Common Mistakes When Using AI for Social Media

Even with the best tools, things can go wrong. Avoid these traps to keep your feed looking sharp.

Lacking a Strategy

Don’t just post random things because the AI suggested them. Ensure every piece of content ties back to your business goals. Are you trying to sell products or build awareness?

Ignoring the “Social” Aspect

AI can write the post, but it can’t reply to comments. Don’t automate everything. You need to be there to answer questions and thank people for sharing.

Being Too Generic

“Happy Monday! Hope you have a great week!” is a waste of a post. It gives no value. Ask the AI to be specific: “Generate social media posts about how to beat the Monday blues for accountants.”

How to Build a Monthly Content Calendar in Minutes

Let’s put it all together into a workflow that saves you hours.

  1. Open your AI tool.

  2. Paste your context prompt (who you are, target audience).

  3. Ask for a calendar: “Create a table for a 4-week content calendar for [your choice of social platforms, eg Instagram and Facebook]. I want 3 posts per week. Column 1: Date, Column 2: Topic, Column 3: Caption draft, Column 4: Image idea.”

  4. Review and Refine: Look through the table. If a topic is boring, ask the AI to “regenerate that row with a more [you choose, eg controversial/funny/interesting/relevant/unexpected] idea.”

  5. Batch Create: Go to Canva, create the visuals for the month all at once using the image ideas from the table.

  6. Schedule: Load them into your scheduler.

You have just done a month’s worth of marketing work in about 45 minutes. That is the power of using AI to create your strategy.

Conclusion

Using AI for small business isn’t about cheating; it’s about efficiency. It allows you to compete with big brands by producing high-quality, engaging social posts consistently. By following this step-by-step guide, you can turn a daunting chore into a quick, manageable task.

Remember, the AI tool is the car, but you are the driver. You need to steer it in the right direction with good prompts and keep your eyes on the road (your customers). So, open up a new chat, enter a prompt, and give it a go. You might be surprised at how much easier your marketing becomes.

Learning More About AI Usage for NZ Small Business Marketing

If you’d like to know more about using AI for NZ Small Business Marketing, you might like to check out our courses:

PRACTICAL DIGITAL MARKETING FOR NZ SMALL BUSINESS

This comprehensive course cuts through the overwhelming world of digital marketing to deliver exactly what you need to know, tailored specifically for the New Zealand market. You’ll learn practical, proven strategies that work for businesses your size, in your market.

Read the full details of the Practical Digital Marketing for NZ Small Business course here.

AI MARKETING FOR NZ SMALL BUSINESS

For Kiwi small business owners and solo operators, AI offers a massive opportunity to compete with larger rivals by saving time and cutting costs. This nine-lesson course cuts through the technical jargon to show you exactly how to use AI tools for practical tasks—like drafting social media posts, responding to customer queries 24/7 with chatbots, and analysing your sales data. We also cover the essential “Kiwi” context, ensuring you know how to use these tools safely and legally within New Zealand’s privacy regulations.

Read the full details of the AI Marketing for NZ Small Business course here.

FAQ: Using AI for NZ Social Media

Q: Can I use AI to generate social media posts for free?

A: Yes, absolutely. Tools like the free version of ChatGPT and the basic version of Canva are excellent starting points. You can generate social posts, captions, and even basic images without spending a cent. As you grow, you might find the paid features (like faster image generation or better brand voice controls) worth the investment, but they aren’t strictly necessary to start.

Q: Will the algorithm penalize me for using AI-generated content?

A: Generally, no. Social platforms care about engagement—likes, comments, and shares. If your AI-generated posts are high-quality, relevant, and helpful to your audience, the algorithm will treat them well. The penalty comes if you post low-quality, spammy content that nobody interacts with, regardless of who (or what) wrote it.

Q: How do I make sure my AI posts sound like a Kiwi?

A: You need to instruct the AI specifically. In your prompt, ask it to “use New Zealand English spelling” and “adopt a local, friendly tone suitable for a Kiwi audience.” You can also provide it with examples of your previous posts so it can mimic your style. Always review the content to remove Americanisms like “soccer” or “fall” (autumn).

Q: Is it okay to use AI images for my business?

A: It is okay, but use them wisely. AI-generated images are great for abstract concepts, backgrounds, or illustrative headers. However, for a local business, customers want to see real faces, real products, and your actual location. A mix is usually best—use AI to enhance your feed, but don’t let it replace the authenticity of your actual work.

Q: Is using AI for social media posts considered cheating or inauthentic?

No, not if you use it correctly. Think of it like using a spell-checker or a calculator. It’s a tool to improve your efficiency. The authenticity comes from you editing the content, adding your personal stories, and speaking directly to your local audience. The AI provides the clay; you sculpt it into your final product.

Q: What’s the biggest benefit you’ve seen for NZ businesses using AI?

The single biggest benefit is consistency. Small businesses often post in bursts, then go quiet for weeks. AI helps remove the biggest barrier—“what do I post?”—enabling a steady flow of content. This consistent presence builds brand recall and keeps you top-of-mind with customers far more effectively than occasional, perfect posts.

Can AI really sound like my brand?

Yes—if you feed it details about your tone, audience, and style. Always review and tweak the output to add your personal touch.

What if I’m not tech-savvy?

These tools are designed for beginners. Sign-up takes minutes, and prompts are just normal sentences. Start with simple ones and build confidence.

Will AI posts get better engagement?

They can—because they let you post more often and test ideas fast. Combine AI speed with your local knowledge for the best results.

Is AI safe for my business data?

Stick to public info in prompts. Avoid sharing sensitive details like customer lists or financials.

Michael Carney Written by: