X Is Rebuilding How You Experience Your Timeline
X, the platform formerly known as Twitter, is making one of its most significant structural changes in years: replacing Communities with AI-powered custom feeds curated by Grok, the platform's in-house artificial intelligence.
The new feature, which TechCrunch got a hands-on look at this week, represents a fundamental rethinking of how X organizes content for its users. Instead of joining niche Communities — the semi-private group spaces X launched in 2021 — users will now be dropped into algorithmically assembled feeds that Grok tailors based on their interests, engagement history, and the broader conversation happening across the platform.
What the New Feeds Actually Look Like
The custom feeds appear as dedicated tabs within the X app. Each one is built around a theme or topic — think sports, politics, tech, entertainment — and Grok continuously populates them with posts it deems relevant and high-quality for that subject area.
Unlike Communities, which required users to actively join a group and post within it, these new feeds are largely passive. X decides what goes in them. Users can browse, react, and engage, but the editorial control has shifted firmly to the algorithm.
According to TechCrunch's hands-on report, the feeds feel noticeably more curated than the standard For You timeline, with Grok appearing to prioritize posts that have strong engagement signals and topical relevance rather than just recency or follower count.
The Ad Angle
It wouldn't be a major X product announcement without a monetization component. Alongside the new feeds, X is introducing custom ad slots that slot directly into the Grok-curated timelines.
For advertisers, this is a significant opportunity: rather than broadcasting to a general audience, they can now place ads inside feeds already sorted by topic, reaching users who have self-identified — or been identified by Grok — as interested in a specific subject area. A tech company, for example, could target exclusively the tech feed rather than the broader platform.
For users, it means ads that may feel more contextually relevant, though also more precisely targeted than ever before.
A Goodbye to Communities
The phasing out of Communities is notable. The feature was X's attempt to compete with Facebook Groups and Reddit, giving users a space to interact with like-minded people around shared interests. It had a modest but dedicated user base, particularly among niche hobbyist and professional communities.
By replacing it with Grok-driven feeds, X is signalling that it believes AI curation can do a better job of connecting people with relevant content than community-based organization can. Whether users who valued Communities for their human, group-chat quality will agree remains to be seen.
What It Means for the Platform
The move is consistent with X owner Elon Musk's broader vision of Grok as the connective tissue of the platform — not just a chatbot you query, but an active layer shaping what you see and how you experience X day to day.
It also puts X more directly in competition with YouTube's recommendation engine and TikTok's For You algorithm, both of which have made AI-driven content discovery the core of the user experience.
Whether the shift wins back lapsed users or deepens concerns about algorithmic control over public discourse is a question X will be watching closely in the weeks ahead.
Source: TechCrunch
