The 5 prompts that cover almost everything
Save these five prompts in your phone notes. Most days, one of them will get you a caption you'd actually post.
- Hook + caption — "Give me 5 Instagram captions for this photo with a scroll-stopping first line."
- Tone match — "Rewrite this caption in a [cozy / witty / professional] tone."
- CTA add-on — "Add a soft call-to-action at the end without sounding pushy."
- Hashtag set — "Give me 10 niche hashtags between 10k and 200k posts."
- Repurpose — "Turn this Instagram caption into a Pinterest pin title and a Twitter post."
Tell AI about the photo, not just the topic
Most beginners write "caption about candles" and get generic results. The fix is to describe the actual image — mood, colors, what's in the frame, what feeling it captures.
AI can't see your photo (yet, in most beginner setups), so the more you describe, the better the caption.
Generic prompt: "Caption for my candle." Better prompt: "Caption for a photo of a cinnamon-scented soy candle on a stack of cream-colored books, warm afternoon light, soft shadow. The brand is calm and slow. Write three options under 50 words each, no exclamation marks."
Use AI for the first line, not the whole caption
The hardest part of any caption is the first line. The rest writes itself once you nail the opener. Use AI specifically for that opener — "give me 10 scroll-stopping first lines" — and then write the body yourself in your real voice.
This keeps the caption authentic and saves the part you'd waste 20 minutes on.
Write a small batch, not one at a time
Caption stress is mostly context-switching. You stop your day, open the photo, write, post, repeat. The cure is to batch — generate captions for a week of posts in a single 30-minute session, then schedule them.
- Pick a Sunday or Monday morning for your batch session.
- Open the 7 photos you'll post that week.
- Ask AI for captions for all 7 in one chat — it keeps tone consistent.
- Edit each one in your real voice and schedule with your preferred app.
Things to avoid
Some habits make AI-written captions feel obvious. Avoid these and your posts will feel native.
- Too many exclamation marks — AI loves them, real people don't.
- Phrases like "in today's fast-paced world" — instantly outs the caption as AI-generated.
- Generic CTAs like "check the link in bio" — replace with something specific.
- Hashtags AI suggests without checking — always verify post counts before using them.
Make it sound like you in one extra step
After the first AI draft, ask one more time: "Rewrite this in a more casual tone, like I'm messaging a friend." That single re-prompt removes 90% of the AI smell.
FAQ
Can AI write captions that don't sound like AI?
Yes, if you give it specific tone instructions and edit one or two lines yourself. The casual-friend rewrite trick removes most of the AI smell.
What's the best AI for short captions?
ChatGPT (free) is fast and good for snappy captions. Claude is better for longer, story-style captions.
Should I always include hashtags?
On Instagram yes, on Pinterest no, on TikTok use 3-5 max. AI can suggest sets, but always verify the post counts.
How long should a caption be?
Short captions (under 50 words) work great for product posts. Longer captions (200-300 words) work better for story-based posts.
Can AI help me find my brand voice?
Yes — paste 3 of your favorite captions and ask AI to describe the voice. Then ask it to write new captions in that exact voice.
Want the prompts as a PDF?
I made a free Mini Kit with the ChatGPT prompts beginners actually use every day. It's a clean PDF you can save to your phone.
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