Why replies beat posts: the reply-back multiplier explained

Most people spend all their energy on original posts and treat replies as an afterthought. The open-source algorithm says that's backwards. A well-placed reply is often the single most efficient way to earn reach on X.

What the published weights actually say

A reply is worth 10× a like in X's published weight table, and a reply between two accounts that follow each other back is worth 4× an ordinary reply - the biggest ranking change X shipped in 2026. There is no separate author-replied-back weight in the table. What makes an exchange valuable is that it pulls in more replies, from the people whose replies already count for the most.

Why being early matters so much

Replies compound. The earlier you reply to a post that is still climbing, the more eyes pass over your reply as the post gains traction - and the more likely the author sees it and responds. Reply an hour late to a viral post and you are buried under thousands of others. Reply in the first few minutes with something sharp, and you ride the wave.

What makes a reply worth replying to

• Add a specific fact, number, or angle the post missed - not "great post".
• Be quotable on its own, so it reads as a mini-post, not a comment.
• Ask a genuine question the author would want to answer.
• Keep it in your voice - generic praise gets ignored and scored near zero.

Seed replies for out-of-network reach

Replying into an active conversation in your niche puts you in front of an audience that doesn't follow you yet. That is out-of-network distribution - the same engine that grows accounts from scratch. Pick posts that are fresh and still gaining engagement, then be genuinely useful.

X Radar drafts every post in your cloned voice and scores it against these exact signals in under a second, before you ever hit post. Sign in with X to try it free.