Media & Entertainment

How Instagram’s algorithm works

Comment

Image Credits: Bryce Durbin / TechCrunch

Instagram users were missing 70 percent of all posts and 50 percent of their friends’ posts before the app ditched the reverse chronological feed for an algorithm in July 2016. Despite backlash about confusing ordering, Instagram now says relevancy sorting has led to its 800 million-plus users seeing 90 percent of their friends’ posts and spending more time on the app.

Yet Instagram has never explained exactly how the algorithm chooses what to show you until today. The Facebook-owned company assembled a group of reporters at its under-construction new San Francisco office to take the lid off the Instagram feed ranking algorithm.

Instagram product lead Julian Gutman explains the algorithm

Instagram’s feed ranking criteria

Instagram relies on machine learning based on your past behavior to create a unique feed for everyone. Even if you follow the exact same accounts as someone else, you’ll get a personalized feed based on how you interact with those accounts.

Three main factors determine what you see in your Instagram feed:

  1. Interest: How much Instagram predicts you’ll care about a post, with higher ranking for what matters to you, determined by past behavior on similar content and potentially machine vision analyzing the actual content of the post.
  2. Recency: How recently the post was shared, with prioritization for timely posts over weeks-old ones.
  3. Relationship: How close you are to the person who shared it, with higher ranking for people you’ve interacted with a lot in the past on Instagram, such as by commenting on their posts or being tagged together in photos.

Beyond those core factors, three additional signals that influence rankings are:

  • Frequency: How often you open Instagram, as it will try to show you the best posts since your last visit.
  • Following: If you follow a lot of people, Instagram will be picking from a wider breadth of authors so you might see less of any specific person.
  • Usage: How long you spend on Instagram determines if you’re just seeing the best posts during short sessions, or it’s digging deeper into its catalog if you spend more total time browsing.

Instagram mythbusting

Instagram’s team also responded to many of the most common questions and conspiracy theories about how its feed works. TechCrunch can’t verify the accuracy of these claims, but this is what Instagram’s team told us:

  • Instagram is not at this time considering an option to see the old reverse chronological feed because it doesn’t want to add more complexity (users might forget what feed they’re set to), but it is listening to users who dislike the algorithm.
  • Instagram does not hide posts in the feed, and you’ll see everything posted by everyone you follow if you keep scrolling.
  • Feed ranking does not favor the photo or video format universally, but people’s feeds are tuned based on what kind of content they engage with, so if you never stop to watch videos you might see fewer of them.
  • Instagram’s feed doesn’t favor users who use Stories, Live, or other special features of the app.
  • Instagram doesn’t downrank users for posting too frequently or for other specific behaviors, but it might swap in other content in between someone’s if they rapid-fire separate posts.
  • Instagram doesn’t give extra feed presence to personal accounts or business accounts, so switching won’t help your reach.
  • Shadowbanning is not a real thing, and Instagram says it doesn’t hide people’s content for posting too many hashtags or taking other actions.

Today’s Instagram whiteboard session with reporters, its first, should go a long way to clearing up misunderstandings about how it works. When people feel confident that their posts will reach their favorite people, that they can reliably build a public audience, and that they’ll always see great content, they’ll open the app more often.

Yet on the horizon looms a problem similar to what Facebook’s algorithm experienced around 2015: competition reduces reach. As more users and businesses join Instagram and post more often, but feed browsing time stays stable per user, the average post will get drowned out and receive fewer views. People will inevitably complain that Instagram is trying to force them to buy ads, but it’s a natural and inevitable consequence of increasingly popular algorithmic feeds.

The more Instagram can disarm that problem by pushing excess content creation to Stories and educating users about how the feed operates, the less they’ll complain. Facebook is already uncool, so Instagram must stay in our good graces.

More TechCrunch

CoreWeave has formally opened an office in London that will serve as its European headquarters and home to two new data centers.

CoreWeave, a $19B AI compute provider, opens European HQ in London with plans for 2 UK data centers

The Series C funding, which brings its total raise to around $95 million, will go toward mass production of the startup’s inaugural products

AI chip startup DEEPX secures $80M Series C at a $529M valuation 

A dust-up between Evolve Bank & Trust, Mercury and Synapse has led TabaPay to abandon its acquisition plans of troubled banking-as-a-service startup Synapse.

Infighting among fintech players has caused TabaPay to ‘pull out’ from buying bankrupt Synapse

The problem is not the media, but the message.

Apple’s ‘Crush’ ad is disgusting

The Twitter for Android client was “a demo app that Google had created and gave to us,” says Particle co-founder and ex-Twitter employee Sara Beykpour.

Google built some of the first social apps for Android, including Twitter and others

WhatsApp is updating its mobile apps for a fresh and more streamlined look, while also introducing a new “darker dark mode,” the company announced on Thursday. The messaging app says…

WhatsApp’s latest update streamlines navigation and adds a ‘darker dark mode’

Plinky lets you solve the problem of saving and organizing links from anywhere with a focus on simplicity and customization.

Plinky is an app for you to collect and organize links easily

The keynote kicks off at 10 a.m. PT on Tuesday and will offer glimpses into the latest versions of Android, Wear OS and Android TV.

Google I/O 2024: How to watch

For cancer patients, medicines administered in clinical trials can help save or extend lives. But despite thousands of trials in the United States each year, only 3% to 5% of…

Triomics raises $15M Series A to automate cancer clinical trials matching

Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation. Sign up here for free — just click TechCrunch Mobility! Tap, tap.…

Tesla drives Luminar lidar sales and Motional pauses robotaxi plans

The newly announced “Public Content Policy” will now join Reddit’s existing privacy policy and content policy to guide how Reddit’s data is being accessed and used by commercial entities and…

Reddit locks down its public data in new content policy, says use now requires a contract

Eva Ho plans to step away from her position as general partner at Fika Ventures, the Los Angeles-based seed firm she co-founded in 2016. Fika told LPs of Ho’s intention…

Fika Ventures co-founder Eva Ho will step back from the firm after its current fund is deployed

In a post on Werner Vogels’ personal blog, he details Distill, an open-source app he built to transcribe and summarize conference calls.

Amazon’s CTO built a meeting-summarizing app for some reason

Paris-based Mistral AI, a startup working on open source large language models — the building block for generative AI services — has been raising money at a $6 billion valuation,…

Sources: Mistral AI raising at a $6B valuation, SoftBank ‘not in’ but DST is

You can expect plenty of AI, but probably not a lot of hardware.

Google I/O 2024: What to expect

Dating apps and other social friend-finders are being put on notice: Dating app giant Bumble is looking to make more acquisitions.

Bumble says it’s looking to M&A to drive growth

When Class founder Michael Chasen was in college, he and a buddy came up with the idea for Blackboard, an online classroom organizational tool. His original company was acquired for…

Blackboard founder transforms Zoom add-on designed for teachers into business tool

Groww, an Indian investment app, has become one of the first startups from the country to shift its domicile back home.

Groww joins the first wave of Indian startups moving domiciles back home from US

Technology giant Dell notified customers on Thursday that it experienced a data breach involving customers’ names and physical addresses. In an email seen by TechCrunch and shared by several people…

Dell discloses data breach of customers’ physical addresses

Featured Article

Fairgen ‘boosts’ survey results using synthetic data and AI-generated responses

The Israeli startup has raised $5.5M for its platform that uses “statistical AI” to generate synthetic data that it says is as good as the real thing.

21 hours ago
Fairgen ‘boosts’ survey results using synthetic data and AI-generated responses

Hydrow, the at-home rowing machine maker, announced Thursday that it has acquired a majority stake in Speede Fitness, the company behind the AI-enabled strength training machine. The rowing startup also…

Rowing startup Hydrow acquires a majority stake in Speede Fitness as their CEO steps down

Call centers are embracing automation. There’s debate as to whether that’s a good thing, but it’s happening — and quite possibly accelerating. According to research firm TechSci Research, the global…

Retell AI lets companies build ‘voice agents’ to answer phone calls

TikTok is starting to automatically label AI-generated content that was made on other platforms, the company announced on Thursday. With this change, if a creator posts content on TikTok that…

TikTok will automatically label AI-generated content created on platforms like DALL·E 3

India’s mobile payments regulator is likely to extend the deadline for imposing market share caps on the popular UPI (unified payments interface) payments rail by one to two years, sources…

India likely to delay UPI market caps in win for PhonePe-Google Pay duopoly

Line Man Wongnai, an on-demand food delivery service in Thailand, is considering an initial public offering on a Thai exchange or the U.S. in 2025.

Thai food delivery app Line Man Wongnai weighs IPO in Thailand, US in 2025

Ever wonder why conversational AI like ChatGPT says “Sorry, I can’t do that” or some other polite refusal? OpenAI is offering a limited look at the reasoning behind its own…

OpenAI offers a peek behind the curtain of its AI’s secret instructions

The federal government agency responsible for granting patents and trademarks is alerting thousands of filers whose private addresses were exposed following a second data spill in as many years. The…

US Patent and Trademark Office confirms another leak of filers’ address data

As part of an investigation into people involved in the pro-independence movement in Catalonia, the Spanish police obtained information from the encrypted services Wire and Proton, which helped the authorities…

Encrypted services Apple, Proton and Wire helped Spanish police identify activist

Match Group, the company that owns several dating apps, including Tinder and Hinge, released its first-quarter earnings report on Tuesday, which shows that Tinder’s paying user base has decreased for…

Match looks to Hinge as Tinder fails

Private social networking is making a comeback. Gratitude Plus, a startup that aims to shift social media in a more positive direction, is expanding its wellness-focused, personal reflections journal to…

Gratitude Plus makes social networking positive, private and personal