Instagram is testing the ability to add a unique caption to each individual image or video within a carousel post.
If you've spent any time wrestling with the limitations of the single-caption carousel format, you already understand why this update deserves more than a passing glance.
Carousels have long held a privileged position in Instagram's engagement ecosystem. Adam Mosseri, Instagram's chief, noted back in 2024 that carousels improve reach precisely because multiple slides create multiple chances to capture attention, with users spending more time inside a single post.
Instagram's algorithm also tends to reward time spent, and giving users something worth reading on each slide will extend that time without resorting to "swipe to see the twist" bait. Per-slide captions essentially give the carousel a second dimension, adding depth to go with the width.
Instagram confirmed to Social Media Today that the feature remains in testing, so widespread availability is still some distance away.
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