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Best Prompts for Instagram Captions — Engagement Questions with Call-to-Action
12 copy-ready caption prompts that ask an engaging question and include a clear call-to-action (CTA). Each entry includes a short explanation, a realistic example caption you can post as-is, and recommended AIs that produce strong outputs.
Claude Opus 4
GPT-5
Claude Sonnet 4
Gemini 2.5 Flash
Gemini 2.5 Pro
You've posted a gorgeous photo on Instagram, crafted what you thought was the perfect caption, and then... crickets. Your engagement feels stuck in neutral while you watch other accounts effortlessly spark conversations and build community. The frustration is real when you know your content deserves better but you're not sure how to get people talking.
This collection of 12 proven Instagram caption prompts transforms your posts from conversation killers into engagement magnets. Each prompt combines a strategic question format with a clear call-to-action, covering everything from quick "A or B" choices to deeper storytelling prompts that build genuine connections. Instead of wondering why your posts aren't getting comments, you'll have a toolkit of copy-ready formulas that turn passive scrollers into active participants who genuinely want to engage with your content.
1
A or B — Quick Choice CTA
Write 3 short Instagram captions asking followers to pick between Option A and Option B about [topic]. Include a clear CTA: 'Comment A or B below' and add one relevant emoji per caption. Keep each caption under 120 characters.
Ask followers to pick between two options and tell them how to respond (comment A or B). Short, clear, great for stories or feed.
2
Tag-a-Friend Challenge
Create 3 engaging captions that ask followers to tag a friend who would love [product/experience]. Use a friendly tone and include the CTA: 'Tag a friend who needs this!' and one playful emoji.
Invite followers to tag a friend for participation or visibility. Great for reach and new followers.
3
Vote with an Emoji
Generate 4 captions that present a two-choice question about [topic] and ask followers to 'Vote with an emoji' (provide the two emoji options). Keep them casual and under 140 characters.
Encourage fast, low-effort engagement by asking followers to vote using one emoji per choice.
4
Would You Rather — Explain Why
Write 3 conversational captions using 'Would you rather...' about [topic]. End each with 'Would you rather? Explain below!' and encourage 1–2-sentence replies.
Use the classic 'Would you rather' format plus a CTA that asks followers to explain their choice in the comments.
5
Fill-in-the-Blank CTA
Craft 4 fill-in-the-blank captions for [theme] that end with 'Fill in the blank:' followed by a short prompt (e.g., 'My go-to comfort food is ___'). Keep captions under 130 characters and include the CTA 'Fill in the blank below!'.
Simple prompt that invites followers to complete a sentence — low-friction and personal.
6
Caption This — Creative Responses
Produce 3 playful 'Caption this' prompts for a photo of [scene]. Each should say 'Caption this!' and include the CTA 'Best one gets pinned' or 'Best one featured' to increase effortful replies.
Invite followers to write a caption for an image — good for humor and short-form engagement.
7
Rate It 1–10 and Tell Why
Write 3 captions that ask followers to rate [product/event/photo] from 1–10 and tell why. Include the CTA 'Rate 1–10 and tell us why in the comments' and use a slightly enthusiastic tone.
Ask followers to rate something and explain their score to encourage longer comments.
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