According to Carouselli (April 2026), like counts dropped 48% year over year across all niches. The algorithm was retrained back in 2024, but most creators are still optimizing for a metric that barely moves the needle anymore.
Which signals does the Instagram algorithm count in 2026?
Three signals drive reach distribution:
01 Saves
A save tells the algorithm the content is worth coming back to. The algorithm reads this as a quality signal. According to CreatorFlow (May 2026), saves carry 3–5× more weight than likes in reach distribution.
Carousels collect saves better than any other format. Carouselli records a save rate of 5–15% for top-performing posts, versus 0.5–2% for single images. That's not a coincidence — a carousel takes more than a second to scroll past, so users either stay or save it to return later.
02 DM Shares (Sends)
When a user taps Share and sends a post to someone in DMs, Instagram reads this as a viral potential signal. According to CreatorFlow (May 2026), sends influence reach 3–5× more than likes.
High-sends content is content people want to show to a specific person. An insight that hits exactly the right nerve. A fact worth forwarding. Nobody sends a bad meme — good content gets shared without being asked.
03 Watch Time (Dwell Time)
Instagram tracks how many seconds a user spends with a post. This matters most since Meta started pushing carousels: swiping through 8–10 slides takes 15–60 seconds — a completely different engagement window from the 1–2 seconds a static photo gets.
Carousels have one more mechanism: re-delivery. Adam Mosseri confirmed it — if a user doesn't finish a carousel, Instagram will show it to that same person again, starting from slide 2 or 3. This is the only format with that mechanic. According to Carouselli and OrangeMonke, the re-serve window is 24–48 hours after the original post.
How different formats perform across the three signals
| Format | Saves | Sends | Dwell Time | ER (April 2026) |
|---|---|---|---|---|
| Carousel | 5–15% | High | 15–60 sec | 3.1–5.8% |
| Reels | 2× lower | Medium | 6–15 sec | 1.8–3.5% |
| Single image | 0.5–2% | Low | 1–3 sec | 1.2–2.0% |
| Stories | None | Low | 2–5 sec | 0.3–0.8% |
Source: Carouselli, April 2026; CreatorFlow, May 2026.
Why likes lost their ranking weight
A like costs the user zero effort. A double-tap in the feed is a reflex — it tells the algorithm nothing about content quality. Instagram figured this out before most creators did.
A save, a share, or time spent reading — that's a different story. These actions have friction. The user stops, makes a decision, spends time. The algorithm reads this as confirmed value.
Like counts dropped 48% YoY according to Carouselli (April 2026) — not because audiences got less engaged, but because Meta removed likes from the primary ranking signal in 2024. Posts with thousands of likes and zero saves get throttled by the algorithm.
What to change in your content to optimize for the new signals
→ Create content people want to save
People save content they want to return to: step-by-step guides, checklists, unexpected facts, curated resource lists. Content that's fully absorbed in one view doesn't get saved.
In practice: every carousel should deliver something concrete that can't be memorized in one pass. Not "5 nutrition tips" but "5 foods that specifically lower cortisol, with amounts" — the second version gets saved.
→ Build content people want to forward
People share content that says "this is you" or "you need to see this." An insight that lands exactly in their audience's pain. Data that surprises. A mistake nearly everyone makes.
A good gut-check: if you see a post and your first thought is "I need to send this to Alex," people will share it. If you think "interesting," they'll like it and scroll on.
→ Increase watch time through structure
For carousels this means: slide one stops the scroll, slide two hooks so they don't leave, then one idea per slide with no filler. According to Carouselli, re-delivery activates when 60%+ of users reach the third slide.
7 words per slide is the algorithmic sweet spot — outperforms longer text blocks. Swipe-prompt arrows increase completion rate.
Carousels in 2026: why it's not just a format
A carousel is the only Instagram format with a re-delivery mechanic. Every other format gets one shot in the feed. A carousel gets two, if the first didn't land all the way through.
For creators this means: one quality carousel post outperforms five single images on reach, even with the same audience. According to SocialInsider (2026), carousels generate +109% engagement per reached user compared to Reels.
Average carousel ER in the Education niche — 4.5–6.2% (Carouselli, April 2026). Single images in the same niche: 1.2–2.0%. That's a 3–4× difference.
Making a carousel by hand takes 2–4 hours: structure, copy, design, export. In The Storly it takes 60 seconds. Speak your idea — get a ready carousel with a niche-specific template.
Try for free →How does the Instagram algorithm distribute reach in 2026?
Instagram in 2026 evaluates posts on three main signals: saves, DM shares (sends), and watch time (dwell time). Likes carry minimal weight — their ranking value was reduced after 2024. Posts with high save rates and send rates receive extended reach through the recommendation system, regardless of like count.
Checklist: a post that works under the new signals
- Slide one or the first frame stops the scroll — no cover text cluttering the visual
- The post contains something worth saving: a guide, a fact, a checklist
- The topic hits a specific audience pain point, not a generic "useful" topic
- For carousels: minimum 5 slides, one idea per slide, no more than 7 words
- The caption contains a question or a share prompt — not "drop a like"
- No more than 5 hashtags — according to Hootsuite (2026), more doesn't add reach
- Carousel format chosen intentionally when the goal is saves and re-delivery
Takeaway
Likes aren't dead as a vanity metric — they just stopped driving reach. Instagram shifted to signals that require effort from the audience: stop, read, save, share. Content that triggers at least one of those signals gets reach. Everything else doesn't.
That's uncomfortable news for anyone posting beautiful content that racks up thousands of likes and drives zero sales. And good news for anyone willing to build content around genuine value for their audience.
FAQ: Instagram algorithm 2026
In 2026, Instagram ranks posts based on three main signals: saves, DM shares (sends), and dwell time (watch time). Likes carry minimal weight — their ranking value was reduced after 2024. Posts with high save rates and send rates get extended reach through the recommendation system, regardless of like count.
Carousels outperform every other format. They generate +109% more engagement per reached user compared to Reels (SocialInsider, 2026). Carousel ER is 3.1–5.8% versus 1.2–2.0% for single images. Carousels are also the only format with a re-delivery mechanic — a second chance to reach users who didn't swipe all the way through.
Re-delivery is a mechanic unique to Instagram carousels. If a user doesn't swipe through the full carousel, Instagram will show it to that same person again, starting from slide 2 or 3. The re-serve window is 24–48 hours after the original post. This was confirmed by Adam Mosseri. No other format has this mechanic.
A like is a zero-friction reflex that tells the algorithm nothing about content quality. Meta removed likes from the primary ranking signal in 2024, shifting focus to saves, shares, and watch time. According to Carouselli (April 2026), like counts dropped 48% YoY — the algorithm simply stopped rewarding them.
According to Hootsuite (2026), using more than 5 hashtags adds no extra reach. The Instagram algorithm in 2026 uses caption semantics and keywords to categorize content — hashtags play a supporting role only. Optimal: 3–5 relevant hashtags and a keyword-rich caption.
Slide one stops the scroll — keep the cover clean. Slide two retains with a hook or a promise. Then one idea per slide, no more than 7 words. Re-delivery activates when 60%+ of users reach slide three (Carouselli). The topic needs to provoke a save: a guide, a checklist, an unexpected fact. Minimum 5 slides, maximum 20.