How the Instagram Reels algorithm works in 2026

“Instagram doesn't have a singular algorithm,” its 2023 explainer, Instagram Ranking Explained, says. Each part of the app (Feed, Stories, Explore, Reels and Search) uses its own, tailored to how people use it. Reels is built for discovery: most of what plays there comes from accounts the viewer doesn't follow. Instagram sums up the process in two steps: gather reels someone might like, then order them by how interested it predicts they'll be.

Meta's Transparency Center goes into more detail. Its system card for Reels Chaining, one of the AI systems that picks and orders the reels you see (updated November 11, 2025), describes four steps:

1. Gather inventory. Every reel you might be interested in, including ones from accounts you follow and ones similar to what you've recently engaged with.
2. Use signals to narrow it down. A lightweight model picks about 100 relevant reels, and integrity processes remove anything non-recommendable or against the Community Guidelines.
3. Make predictions. Models estimate how relevant and valuable each of those reels will be to you (the list is below).
4. Rank by score. Each reel gets a score, and the higher ones are shown sooner.

The 2023 explainer lists what feeds those predictions, in order of importance:

• Your activity: the reels you've liked, saved, reshared, commented on or engaged with recently.
• Your history with the account: whether you've interacted with it before.
• Information about the reel: its audio, its visuals and how popular it is.
• Information about the account: its followers and engagement, which Instagram says it uses so a wider range of creators get a chance to find an audience.

Instagram also surveys people on whether a reel was “worth their time or fun”, and uses the answers to improve its predictions. For how TikTok and YouTube describe their systems, see the TikTok algorithm and the YouTube Shorts algorithm.

The system card lists the predictions the Reels system makes for each viewer. They're the most concrete account Instagram has given of what a reel is judged on:

Two of these are worth reading twice. For the first, Meta's example signals are how many people watched at least 3 seconds and how many times the reel was dismissed: a reel that loses people in its first seconds has little left to be ranked on. The second compares watch time with reels of the same length. A longer reel isn't up against short loops; it has to hold people better than other reels its length do.

In January 2025, Mosseri began a video series on his Instagram account with a plain answer, as Social Media Today reported on January 22: “The top three signals that matter most for ranking are watch time, likes and sends.” He told creators to watch three numbers in their insights: average watch time, likes per reach and sends per reach.

• Watch time. How long people keep watching. Each reel's insights show its average watch time.
• Likes per reach. A reel's likes divided by the accounts it reached. Mosseri said likes are “slightly more important for connected content”: reels shown to people who already follow you.
• Sends per reach. How often it was sent to someone, divided by its reach. Sends are “slightly more important for unconnected content”: reels shown to people who don't follow you, which is where new followers come from.

Per reach is the point. A reel with 300 likes from 3,000 accounts did better than one with 600 likes from 60,000, even though the second has more. Work out the rates for your own reels with the engagement rate calculator, and see what a good engagement rate is for what's typical.

Comments weren't on his list (Social Media Today noted they weren't mentioned at all), though commenting is still one of the predictions on Meta's system card. Sends are the signal most creators underrate. A reel worth sending is usually one with a single clear payoff: a tip someone knows a friend needs, a line that sums up a feeling, a moment from a show their friend watches too.

Instagram's post for creators of February 26, 2025 describes the path. A new reel is shown to your followers and to a small group of non-followers Instagram expects to enjoy it. The reels that do best with that group are shown to a wider one, and the best of those to more people again: “distributing content based on its engagement, not just the creator's follower count.” The same post says the ranking changes Instagram began in April 2024 to give smaller creators that chance were now fully launched, and warns that recommendations “make it more difficult to predict the reach of every post.”

Mosseri came back to it in a series of videos on ranking in September 2026. As Social Media Today reported on September 24, he named four principles: originality (the original creator gets precedence over people who repost), recency (newer posts get more exposure), breaking content (showing small creators' public posts to people who don't follow them, to see how they respond) and larger ranking models that weigh more factors from more posts.

None of that happens if your account isn't eligible. Instagram's Recommendations Guidelines keep some content out of Explore, Search and Reels for people who don't follow you, even when it's allowed on the app: sensitive content like violence or regulated products, exaggerated health claims and misleading business models, political content, content people broadly dislike (like clickbait and engagement bait), unoriginal content repurposed without adding value, and claims fact-checkers found false. An account that keeps posting it can be ineligible for a while. Account Status shows which of your posts may be ineligible, and lets you appeal. What to check when a reel stalls is in how to get more views on Instagram Reels.

Instagram has tightened this twice, and the second time it moved from single reels to whole accounts:

• April 30, 2024. When Instagram finds two or more identical pieces of content, it recommends only the original, as long as the original is fairly new. Content that's been changed significantly, like a meme, a parody, a new voiceover or a reaction remix, isn't replaced. Accounts that keep posting other people's content without materially improving it aren't shown where Instagram recommends content, and recommended content must have no visible watermarks.
• April 30, 2026. The rules that applied to reels since 2024 now cover photos and carousels too. Accounts that mainly post unoriginal content “will no longer be shown in places where we recommend content.” Eligibility is worked out on a rolling basis, and comes back once most of an account's recent photos, carousels and reels are original over a 30-day period. You can check it in Account Status and appeal. Followers still see your posts as before, and Instagram said 75% of its recommendations in the US now come from original posts.

What counts is set out in Instagram's Original Content Guidelines: “work that you wholly created or reflects your unique perspective.” Material edits to someone else's content, popular clips included, can count when you add overlaid text that does more than describe what's happening, narration, a storyline or creative graphics. Borders, watermarks, speed changes, a credit to the original creator or just a different caption don't, and the April 2026 post adds subtitles to that list.

Instagram's own announcements, in order:

Some rules come from before all of this. Since its 2023 explainer, Instagram has said it shows reels less when they're low-resolution or watermarked, muted, bordered, mostly text, or already posted on Instagram. And its tips for creators say that to be recommended, a reel “must be 3 minutes or less.”

Viewers have more say over the algorithm than they used to. Your Algorithm opens from the icon of two lines with hearts in the top right of Reels or Explore. It shows an AI-written summary of what Instagram thinks someone is into, and lets them add or remove topics to see more or less of them, or share their interests to their story. Recommended posts can carry a label naming the interest they came from, like “From Running”. Instagram calls it “one unified system”, so a change applies across Feed, Reels and Explore.

The system card lists the older controls: Not interested on a reel, to see less like it; See newest reels first, for reels from accounts you follow in the order they were posted; and sensitive content settings.

For a creator, it means Instagram is matching reels to topics that viewers can now see and edit. Make yours easy to place: say the subject in the first seconds, on screen and in the caption. Instagram's tips for creators say to include relevant keywords “in your content, your caption, your bio, and your hashtags”. A reel that could be about anything is hard to match to anyone's interests.

• Hook in the first seconds. Instagram's advice is to “start with a compelling hook in the first 3 seconds”, and to reach new people, your reels “should make sense to those who may not know you.” Open on the payoff, the claim or the question, never the greeting. Get opening lines from the hook generator and short video hooks, then watch each reel's skip rate.
• Length. Up to 3 minutes can be recommended, and watch time is judged against reels of the same length, so make it as long as the idea and no longer. More in how long a short video should be.
• Original content. Your own footage, or material edits to anyone else's. A clean file with no watermark or border, and never a copy of a reel already on Instagram.
• Captions and sound. Instagram shows muted reels less, so keep the sound, and caption the words for people watching with it off (subtitles help viewers, but on their own they don't make a clip original). Write the caption in plain words people search for, with up to 5 hashtags: Mosseri said in 2025 that hashtags don't increase reach, but help people know what a post is about.
• Something worth sending. Sends per reach matters most with non-followers, so end on the line people will want to share.
• A steady cadence. “One of the most effective ways to grow is to post consistently,” Instagram says, and recency is one of Mosseri's principles. In his 2026 videos, by Social Media Today's account, he said posting often raises your chances of a hit, but to manage your time so you don't burn out. Test ideas with trial reels first. Schedules are in how often to post on TikTok, Reels and Shorts.

The full checklist, from the shown-less list to setting up trial reels and reading Insights, is in how to get more views on Instagram Reels.

Clips cut from your own long videos (a podcast, a stream, a talk) are original by Instagram's definition: you made them. They're also the easiest way to post consistently, since one long video holds many moments and the filming is done. See how to find the best moments to clip for which ones to pick, and podcast clips with Clyper if yours is a show.

Clips of someone else's video, for a clipping campaign, are where the 2026 rules matter most. Your edit has to add something of your own, like narration or on-screen context that does more than describe the moment, and your account's mix has to stay mostly original. By Instagram's rules, a clip with only subtitles added isn't original.

Either way, the slow part is the same: finding the moments, cutting each on a clean sentence, framing it 9:16 and captioning every word. Clyper does that from a link. It reads the whole video, picks the moments that stand on their own and scores each clip's hook, so you know which to post first. On Pro and Studio, each clip also opens with its hook as a headline you can reword in the editor. What you add on top, your voice and your context, stays yours.

Instagram doesn't pay a set rate per view (see how much Instagram pays), so what an account earns comes from brand deals, gifts and subscriptions. Estimate yours with the Instagram money calculator.