X has quietly given marketers one of the clearest maps yet to what the For You feed actually rewards. The open-source home-mixer repository now includes the production weights used to blend predicted actions into a single ranking score. At the top of the positive side is copy-link sharing with a weight of 20.0. A like sits at 0.5, and a report carries -234.0.
The values were published on August 13, 2026, and the file was last synced with production defaults on September 18. For brands, creators and growth teams, that turns an old guessing game into something closer to a checklist.
What the ranking math actually says
X’s Phoenix model predicts how likely each viewer is to take a given action, then the ranking scorer combines those predictions as final score = sum of weight times predicted probability. That means a weight is not a raw count multiplier.
X’s comment in the file is explicit that these coefficients are not a pure popularity meter.
“These weights reflect a combination of how much an action is valued in ranking and typical propensities of these actions across the X network,” it notes.
A copy-link share is rare and prized, so it gets a heavy coefficient. A report is rarer still, which explains part of its large negative value; it does not mean one report mathematically cancels 468 likes.
- Copy-link share: 20.0
- Like: 0.5
- Reply: 5.0
- Reciprocal-follow reply boost: 15.0
- Report: -234.0
- Mute / block / not interested: -58.8 / -31.2 / -43.2
- Profile click: 0
Compare that with the old 2023 numbers still floating around: a 13.5 reply weight and a 12.0 profile click are outdated. The current feed gives profile clicks no ranking weight at all.
What to do differently
The clearest signal is to make content people want to pass along, not just double-tap. Copy-link shares can mean sending a post outside X, saving it for later, or dropping it in a private group. Think breakdowns, templates, sharp opinions, useful checklists or anything that acts as a reference.
Replies still matter, especially between accounts that follow each other. But engagement bait has limits: X’s documentation says engagement only counts when the post is served in the Home Timeline. Coordinating via group chat and navigating directly to a post has no ranking impact.
Negative signals also compound. Repeated reports, mutes or blocks can enter both ranking predictions and account-level labels that visibility filters read later. So avoid tactics that generate friction, even if they pump short-term impressions.
What advertisers can see
Ads are not scored by the organic Phoenix model. They are interleaved by a blending layer, and the default ads blender reorders organic posts around them for adjacency. That gives buyers a useful clue about brand-safety thinking on X, but ad selection, pricing and auction logic remain closed.
There is also a visibility layer with three outcomes: ALLOW, INTERSTITIAL or DROP. A post can rank well and still be filtered out. For small accounts, a new-author boost gives posts under 1,000 impressions from accounts under 1,000 followers a lift within the first 48 hours.
Bottom line
The For You feed is now less of a black box. Copy-link shares are the standout positive signal, likes are common and low-weighted, and negative actions can follow your account over time. If your X playbook still treats likes and profile clicks as the goal, it is time to rebuild it around content people want to send.
Source: PPC Land
