X has rolled out a change to its algorithm designed to give more visibility to posts from a user's "mutuals" — the accounts you follow that also follow you back. The update, confirmed by head of product Nikita Bier, targets a specific pain point: reply sections that felt dominated by strangers rather than people users actually know.
What the Algorithm Tweak Actually Does
The core of the change is about surfacing signal that was previously getting lost. Bier explained that the platform had been missing a key piece of data — whether the people replying to you were actual mutual connections — and that gap meant friends and familiar faces were showing up less often in someone's replies. The practical effect, in his words, was that reply threads increasingly felt like a battleground populated by people users didn't recognize, rather than a space for genuine back-and-forth with people they follow and who follow them.
By restoring that missing signal, X is betting that reply sections will start to feel more like conversations among people who already have a connection, instead of open floor debates with anonymous accounts.
Why This Matters for the Reply Experience
It's a subtle shift rather than a full redesign. The update won't overhaul how X looks or works, but it changes who shows up where you're most likely to see them — in the replies under your own posts and the posts of people you follow. That's the part of the platform where tone tends to get the most contentious, so even a modest recalibration there can change how the site feels to use day to day.
Building Interest-Based Clusters
Bier also framed the update as a step toward helping users form clusters around shared interests — something he said had been a common request. By weighting mutual connections more heavily, the algorithm can more naturally group together people who already engage with each other, which in turn makes it easier for interest-based communities to take shape organically rather than getting drowned out by unrelated traffic.
Part of a Broader Push to Support Creators
This isn't an isolated adjustment. X has been rolling out a series of changes lately, many aimed at turning the platform into more of a hub for creators rather than just a feed of scattered posts.
Rewarding Original Posts Over Aggregation
Earlier this year, X changed how it compensates accounts, shifting incentives toward original content and away from simple aggregation of other people's posts. The goal was to reward creators who actually produce something new rather than accounts that just repackage existing content for engagement.
A New Video Editor for Creators
More recently, X introduced a built-in video editor, giving creators an easier way to produce and refine content directly on the platform. The stated intent was to encourage people to post original material instead of reposting videos lifted from elsewhere.
How This Stacks Up Against Threads
The timing of X's mutuals update lines up with a broader industry pattern: platforms competing on the idea of "community" rather than just reach. Meta's Threads has been leaning into this angle specifically as a way to set itself apart from X.
Threads' "Your Algo" Feature
Recently, Threads introduced a feature called Your Algo, which lets users privately adjust and control what shows up in their own feed. It's a different approach to the same underlying problem — giving people more say over who and what they see — but it points to the same competitive pressure both platforms are responding to.
Threads' Growing User Base
That community-first strategy appears to be paying off in terms of scale: Threads recently crossed 500 million monthly active users, a milestone that underscores how much traction the platform has gained as it builds out these personalization and community features.
The Bigger Picture
Taken together, X's mutuals update and its recent creator-focused tools suggest a platform trying to shift its identity — from a firehose of disconnected voices toward something that feels more like a network of actual relationships. Whether a single algorithm tweak is enough to change that perception broadly remains to be seen, but it does directly address one of the most common complaints about the reply experience: talking past strangers instead of talking with people you know.