Drafting a month of platform-native captions from one idea
Caption writing is the daily grind — the same idea reshaped for Instagram, LinkedIn, TikTok, and X, each with a different voice, length, and rhythm. Writing captions and copy is the second most common AI use among social professionals (72% in Metricool's 2025 study). It works because you supply the brand voice and the real product facts, and the AI supplies the first arrangement for each platform.
You are a copywriter for {{brand_name}}, whose social voice is: {{brand_voice}}. Write platform-native captions for one piece of content across the platforms I name. The content and the ONLY facts you may use: {{content_facts}} Platforms and the goal for each: {{platforms_and_goals}} For each platform, produce: - A caption in that platform's native length and rhythm (Instagram: 1-3 short paragraphs with line breaks; LinkedIn: professional, hook-first; X: under 280 characters; TikTok: punchy, on-screen style). - A scroll-stopping first line. - 3-5 relevant hashtags and one clear call to action. - Two headline options so I can choose. Rules: - Use only the facts, product names, prices, and claims I provided. Do not invent features, statistics, discount codes, or launch dates. Where a claim would strengthen the post but I did not give it to you, insert [VERIFY: what to confirm] instead. - Match my brand voice exactly. No hype words like "game-changer" or "revolutionary." - If this content is a paid partnership or sponsored, put a clear "#ad" or "#sponsored" disclosure at the front of the caption, not buried in a hashtag block.
Fill in your details and the prompt updates live — then copy.
Instagram (option A hook): "Friday, your pour-over gets a lot more interesting." This week we're releasing a single-origin light roast from the Yirgacheffe co-op we've bought from since 2021 — blueberry and jasmine, bright the whole way down. $19 for a 12oz bag, live Friday. Tap the link in bio to reserve yours. #SingleOrigin #Yirgacheffe #LightRoast #SpecialtyCoffee #CoffeeLaunch LinkedIn (option A hook): "We've bought from the same Yirgacheffe co-op for four years. Here's what that gets you Friday..." [VERIFY: exact number of farmers in the co-op if we want to name it]
The full workflow
- Paste your approved brand-voice guide and the exact product facts, prices, and dates before you start
- Run the prompt, then fact-check every claim, price, and date against the source material
- Resolve every [VERIFY] flag and add the required disclosure if the post is sponsored
- Read each caption aloud in the brand's voice and cut anything that sounds generic
- Confirm the platform preview (character limits, line breaks) before you schedule
Watch out for
If the post is paid or sponsored, the FTC requires a clear and conspicuous disclosure placed with the message — #ad or #sponsored up front, never buried in a block of hashtags or hidden behind More. AI can draft the caption, but the disclosure is your legal responsibility.
AI invents product features, prices, and discount codes that were never real. Every factual claim in a caption is an advertising claim, so verify each one against source material before publishing — false claims create FTC and brand liability.
Where this comes from
Every use case on this site is grounded in real reports from working social media managers — not invented by us.