A new toggle lets you write a unique caption for each slide, so the text under a carousel changes as you swipe. Instagram is rolling it out globally over about a week.
2026-06-23 · by Moe Ameen
Instagram has started rolling out slide-specific captions for carousel posts, with Instagram head Adam Mosseri announcing the change as the rollout began on June 18, 2026. Until now a carousel carried one caption for the whole post; the new option lets you attach a separate caption to each photo or video, and the displayed text changes as the viewer swipes from slide to slide.
The feature shows up as a toggle in the caption step of the composer, switching between a single caption for the whole post and multiple captions, one per slide. Single caption stays the default, so nothing changes for anyone who does not opt in. When you choose multiple, you move through each slide in the posting screen and type its caption individually. Instagram's carousel limit is unchanged at 20 slides, which means up to 20 distinct captions on a single post.
Instagram had been testing per-slide captions before this wider release. As with any staged Meta rollout, availability is gradual — the company indicated it should reach everyone within roughly a week, so creators who do not see the toggle immediately should check back over the following days. Treat any finer interface details as a snapshot of an in-progress rollout.
The bottleneck this feature creates is writing — a 20-slide carousel can now demand 20 separate captions, and typing them one slide at a time inside the Instagram composer is exactly the kind of work that stalls a posting schedule. Kompozy removes that bottleneck. Its Carousel Posts format generates the full multi-slide post — brand-exact slide artwork rendered through HyperFrames plus the copy for each slide — from one source and your Persona Brief, so the per-slide text is drafted in your voice before you ever open the app. You review and approve a finished carousel instead of staring at a blank caption field on slide 14.
Then take it past Instagram. Kompozy publishes that carousel to Instagram and fans the same story into the formats other channels reward — a LinkedIn version, a blog explainer, short captioned clips, a newsletter — each with copy fitted to its platform rather than the same block reused everywhere. Schedule the batch and the engine renders, queues, and ships it across all nine connected platforms on Trigger.dev workers while you move on. Instagram gave carousels more room to tell a story; Kompozy is what lets you fill that room at scale and distribute it everywhere at once.
Create your carousel, tap into the caption step, and switch the toggle from single caption to multiple captions. You can then move through each slide in the posting screen and write a unique caption for it. The default stays single caption, so you only get per-slide captions if you turn the option on.
Instagram head Adam Mosseri announced the feature as the rollout started on June 18, 2026. It is rolling out globally and gradually, with availability expected to reach everyone within about a week.
Instagram still caps carousels at 20 slides, so with the multiple-captions option on you can write up to 20 distinct captions — one per slide.
No. Single caption remains the default. The per-slide option is opt-in, so you can keep one caption for the whole post or write individual captions only where they add value.