Instagram carousels from Claude,
with you approving every post.

The short answer

ReelGenie doesn’t draw the slides. Your agent or your own design tools make them. ReelGenie keeps the carousel private, shows every slide in order in a phone preview with the full caption, and publishes it to your Instagram professional account, now or at a time you pick, only after you approve. A carousel can have up to 20 images of the same shape. The free plan covers 30 posts a month.

How to make an Instagram carousel with your agent

1. Make the slides with your agent

   Ask Claude, Codex or your own agent for a few ideas and a cover line, pick one, then let it make the slides with the image tools it has. You can also use slides you designed in Canva or another tool. If you only have words, your agent can lay them onto ReelGenie’s plain text-slide layouts (an opening line, points, a quote and a closing slide) in your brand colours. Use 1080 × 1350 portrait JPEGs and keep every slide the same shape.

2. Review the carousel in ReelGenie

   Your agent saves the post as private and gives you a review link. ReelGenie shows the slides in a phone frame, in order, with the full caption and hashtags: the same files Instagram will receive. Ask your agent to redo a slide, or edit the caption in ReelGenie.

3. Approve the account and time

   Choose the Instagram account and whether it goes now or at a set time. Nothing is sent before approval. Before you approve, ReelGenie checks the carousel against Instagram’s rules (up to 20 images, all the same shape, caption and hashtag limits) and warns you if the Instagram sign-in won’t last until the scheduled time.

4. Check it posted on Instagram

   Scheduled isn’t posted. After the time passes, each account shows its own result: Published when Instagram reports the post as live, or Failed with Instagram’s reason in plain words, so you know whether it actually went out.

Step-by-step guides for each agent: post to Instagram from Claude, from Claude Code and from Codex.

Carousel generator or your own agent?

Most AI Instagram carousel generators write and design the slides inside their own app. Many then leave you to download the images and upload them to Instagram yourself, and some publish to Instagram only on a paid plan. ReelGenie works the other way: you keep using the agent you already have, and ReelGenie handles the preview, your approval and publishing to Instagram. If you want a tool that designs the slides for you, a carousel generator may suit you better. See how ReelGenie compares with Blotato, Postiz and others.

Can I schedule an Instagram carousel?

Yes. Pick a time when you approve and ReelGenie publishes the carousel then, through Instagram’s own publishing API. Instagram lets apps publish only to professional accounts, so switch a personal account to a free creator or business account first. Each delivery waits for approval: yours in ReelGenie, or your agent’s after it has confirmed the account and time with you.

If you already have finished photos and want to post once, Instagram’s own app is enough: start a post, choose several photos and schedule it there. See Instagram’s scheduling help. ReelGenie is for when your agent makes the posts and you want to check each one before it goes out.

Instagram carousel size and limits in ReelGenie

• Up to 20 images per carousel. ReelGenie blocks approval if there are more.
• Every image in the same shape. 1080 × 1350 portrait (4:5) takes up the most room in the feed.
• JPEG files, each up to 8 MB and 12 MB in total, so 20 images need to average about 600 KB each. ReelGenie warns before approval if a PNG or WebP image could be refused.
• Captions up to 2,200 characters and up to 30 hashtags.
• One carousel counts as one post on the free plan, however many accounts it goes to.

See a six-slide Doola carousel from idea to delivery result.

Questions about Instagram carousels

Does ReelGenie make the slides?

No. Your agent (such as Claude or Codex) or your own tools make the slides. ReelGenie doesn’t generate images or video. If you only have words, your agent can place them on ReelGenie’s plain text-slide layouts in your brand colours.

Is it a free Instagram carousel maker?

ReelGenie’s free plan includes 30 posts a month, 1 brand and 3 connected accounts, with no time limit. One carousel counts as one post. Your agent’s plan and its image limits are separate.

Can Claude make an Instagram carousel?

Yes. Claude can write the slides and make them with the tools it has, or lay text onto ReelGenie’s slide layouts. Claude can’t post to Instagram on its own; connected to ReelGenie, it saves the carousel for your review and it is published after approval. See how to post to Instagram from Claude.

Does it post straight to Instagram?

Yes, to Instagram professional (creator or business) accounts, once the delivery is approved. There is no draft to finish in the Instagram app. Instagram doesn’t let apps publish to personal accounts.

How many slides can a carousel have?

Up to 20 images through ReelGenie, all in the same shape. ReelGenie checks this before you approve.

Can I change the words on a slide?

Ask your agent to redo the slide. In ReelGenie you can edit the caption, hashtags, account and time, but not the image itself.

Does editing in ReelGenie change a published post?

No. Edits in ReelGenie don’t change a carousel that is already on Instagram.

How do I keep the slides in my brand style?

Give your agent your brand brief and a saved Favourite, ask for the cover and one inside slide first, and check the type, colours and wording at phone size before it makes the rest. A reference guides the images; it doesn’t guarantee an exact logo or font match.

Can I try it before signing up?

Yes. Try ReelGenie without signing up to see the review and approval steps.