PromptOrix

Social media content is where most marketers lose the most time to the blank page.

It’s not the strategy that’s hard. It’s the actual writing. Coming up with a new hook, a fresh angle, a caption that doesn’t sound like every other brand, three times a week, every week.

AI can do the heavy lifting on the first draft. But only if you give it a proper brief.

The prompts below cover every major social media post type. Each one is designed to give the AI enough context to produce something you’d actually post, not just edit endlessly. Pick the one you need, fill in the brackets, and go.

Before You Start: One Thing to Add to Every Prompt

Before using any prompt below, add this line at the top:

“Write in the voice of [Brand Name]: [2 to 3 sentences describing your brand’s tone, e.g. direct and a little cheeky, no corporate speak, uses plain language, writes like a smart person talking to another smart person].”

This one addition consistently produces more on-brand output and cuts editing time in half.

Prompt 1: The Thought Leadership Post (LinkedIn)

For building authority and generating engagement from peers and potential clients.

“Write a LinkedIn post about [specific insight or observation about your industry]. Open with a counterintuitive statement or surprising data point. Build to your main point in 3 to 4 short paragraphs. End with a genuine question that invites people to share their experience. Tone: direct and confident, but not preachy. No hashtags. No bullet lists. Under 250 words.”

What makes this work: The counterintuitive statement opening is one of the most reliable hooks on LinkedIn. It stops the scroll because it challenges an assumption the reader already holds.

Prompt 2: The Product or Feature Launch Post

For announcing something new without sounding like a press release.

“Write a social media post announcing [product/feature name] for [platform: LinkedIn / Instagram / X]. The audience is [describe them]. Don’t lead with the product name. Lead with the problem it solves or the outcome it creates. Then introduce what it is in one sentence. Include: one specific benefit, one social proof signal (you can use a placeholder), and a CTA to [action]. Under [word count for platform].”

Adapt for platform:

• LinkedIn: up to 300 words, no hashtags
• Instagram: 150 words plus 5 to 8 relevant hashtags at end
• X/Twitter: 280 characters maximum

Prompt 3: The Behind the Scenes Post

One of the best-performing content types for building trust, and rarely used well.

“Write a behind-the-scenes post about [something real from your business: a process, a decision, a mistake, a win]. Don’t just describe what happened. Share what you learned from it or why you do it this way. The goal is to make readers feel like they’re getting access to something most brands don’t share. Tone: honest and specific. Platform: [Instagram / LinkedIn]. Under 200 words.”

Note: The more specific the detail, the better this post performs. “We revised our onboarding 4 times before getting it right” outperforms “we care about our customers” every time.

Prompt 4: The Value-Led Carousel (Instagram / LinkedIn)

Teaching-focused content that performs well and gets saved.

“Create a 6-slide carousel script about [topic]. Slide 1: Hook, one bold claim or surprising fact. Slides 2 to 5: one practical tip or insight per slide, each with a title and 2 to 3 lines of explanation. Slide 6: Summary plus CTA to follow or subscribe. Keep each slide to 30 words maximum. Tone: [practical / motivational / educational]. Topic: [topic].”

Then paste each slide’s text into your design tool (Canva, Figma, etc.).

Earlier on PromptOrix – Why Your AI Marketing Prompts Keep Failing (And the 5-Part Fix)

Prompt 5: The Engagement Question Post

Designed to generate comments and start conversations.

“Write a post for [LinkedIn / Instagram / X] that asks a question to spark discussion about [topic]. Don’t just ask the question. Give a 3 to 4 line observation or opinion first to give people something to react to. The question at the end should be specific and easy to answer in a few words. Avoid vague questions like ‘What do you think?’ and ask something concrete: [e.g. ‘Do you use AI to write your first drafts, or do you still start from scratch?’].”

Prompt 6: The Repurposed Content Post

Turning a long-form piece (blog, podcast, video) into social content.

“Here is [blog post / podcast transcript / video summary]: [paste it]. Turn the most interesting or surprising insight from this into a standalone [LinkedIn post / X thread / Instagram caption]. Don’t summarise the whole piece. Pick one idea and make it stand alone. Include a link to the full piece at the end. Max [word count].”

Why this matters: Most content repurposing just summarises. This prompt finds the one idea worth extracting and builds a post around it, which performs far better than a summary.

Prompt 7: The Story-Driven Post

For platforms where narrative performs (LinkedIn, Instagram).

“Write a short-form story post for [platform] about [specific experience, a customer win, a failure, a turning point]. Open with a single, specific scene or moment, not a broad setup. Build through what happened and what you noticed. End with the lesson or takeaway, but keep it brief. Tone: personal and honest, not inspirational-quote-style. Under 250 words.”

The best social media story posts feel like something you’d tell a colleague over coffee. Specific, real, and without a forced moral.

Prompt 8: The Event or Launch Countdown

For building anticipation before a launch, webinar, or live event.

“Write a series of 3 social posts building anticipation for [event/launch] happening on [date]. Post 1 (7 days before): tease what’s coming without revealing everything. Post 2 (2 days before): share one specific detail or benefit to raise urgency. Post 3 (day of): clear CTA with the link or action. Each post should feel like a natural progression, not three versions of the same message. Platform: [LinkedIn / Instagram / X].”

Making These Prompts Even Better

Every prompt above works on its own. But they get significantly better when you:

Add a real example. Paste in a post you’ve written before that represents your tone. Two sentences of example does more than two paragraphs of description.

Specify what to avoid. If there are phrases, words, or structures you hate, like “game-changer”, excessive exclamation marks, or emoji overload, add them to the prompt. The AI will steer around them.

Ask for variations. End any prompt with: “Give me 3 different opening lines for this post.” Then pick the one that feels right and build from there.

Social media content doesn’t have to eat your time. These prompts are the starting points. Your judgment and brand knowledge are what make the final output worth posting.