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Social media post: same prompt, different AI

Task: A post for LinkedIn, Instagram or X from one idea. Below is the same job written the way each tool works best. All prompts are RuleStack originals (MIT). We describe how prompting differs, not which tool is "best": we haven't run benchmarks, and results change with every model update.

Note: Review and test before use. Provided as is, without warranty. See Terms.

ChatGPT

Good at producing several formats in one go.

Prompt
Turn this idea into posts: [idea]. Write: a LinkedIn post (120-180 words, hook line, short paragraphs, one question at the end), an X post under 270 characters, and an Instagram caption with 5 hashtags. Voice: [voice].

Claude

Voice samples plus a banned-phrases list keeps the tone human.

Prompt
Here is my idea and voice samples: <idea>[idea]</idea> <samples>[2-3 past posts]</samples>. Write a LinkedIn post that sounds like the samples. Avoid clichés like "game-changer" and "let that sink in". Then give 3 alternative hook lines.

Gemini

Handy if you post across Google surfaces like YouTube.

Prompt
Write a YouTube community post and a LinkedIn post about [idea] for [audience]. Keep both under 150 words, add a clear call to action, and suggest an image idea for each.

Meta AI

Meta AI can write the caption and create the image in the same chat.

Prompt
Write an Instagram caption and a Facebook post about [idea] for my [business]. Friendly tone, one emoji max per paragraph, end with a question. Then imagine a matching square image.

Grok

Grok fits fast X-native drafts and angles.

Prompt
Write 5 X posts about [idea], each a different angle (hot take, how-to, story, stat, question). Under 260 characters each, no hashtags.

How they differ

Replace everything in [square brackets] with your details. More: Social media prompts · all comparisons

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