Grok will now personalize your X timeline with AI curation

X has introduced a new feature that hands control of your timeline over to its AI assistant, Grok. Premium subscribers on iOS can now pin specific topics to their home tab, allowing Grok to curate posts across every feed based on its understanding of individual preferences.

The move signals a shift toward AI-driven personalization, with X product head Nikita Bier emphasizing the feature’s adaptability. "It's powered by Grok's understanding of every post with the algorithm's personalization—meaning every timeline is made just for you," Bier explained in an announcement on Wednesday. "And it works even better when it's a topic you already engage with."

The update is currently available as early access for iOS users, with Android support expected "very soon." This development follows X’s broader push to integrate AI into its platform, aiming to enhance user experience through smarter content recommendations.

How the Grok-powered timeline works

The feature relies on Grok’s ability to analyze user behavior and content relevance. Users begin by selecting topics they frequently interact with, such as technology, sports, or finance. Grok then uses this input to prioritize posts in the timeline, ensuring that the most relevant updates appear first.

Unlike traditional algorithms that rely solely on engagement metrics, Grok incorporates deeper contextual understanding. This means the AI can differentiate between nuanced interests—such as distinguishing between AI research papers and casual tech discussions—improving the accuracy of recommendations.

Premium subscribers on iOS can enable the feature by navigating to their settings and selecting the Grok-powered timeline option. The system learns over time, refining its selections based on user interactions. Early feedback suggests that users with niche interests see the most noticeable improvements in feed quality.

Privacy and customization considerations

X has not detailed how Grok processes user data for timeline curation, but the company states that personalization is limited to posts and topics users explicitly engage with. The feature does not appear to scan private messages or external data sources.

For users concerned about AI-driven curation, X offers the ability to disable the feature entirely. Additionally, pinned topics can be adjusted or removed at any time, giving users control over the AI’s influence on their feed.

What’s next for X and Grok?

The rollout of Grok-powered timelines marks another step in X’s strategy to leverage AI for user retention. With Grok’s integration into the core feed experience, the platform is positioning itself as a leader in AI-driven social media personalization.

Future updates may expand Grok’s role beyond timeline curation, potentially influencing search results, notifications, and even ad targeting. As competition in the social media space intensifies, X’s focus on AI-driven features could help it stand out among rivals.