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Does Grok read your posts before people do?

a file on every post, before anyone reads it

AAuny ยท Sep 2026 ยท 3 min read

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Does Grok read your posts before people do?

you post something. before most people ever see it, a model has already read it and written a file on it ๐Ÿ‘€

here's what the open-source portion of ๐•'s algo says about that, in simple words.

[you don't have to read the repo yourself. have your AI read it and explain it back to you]

1. IT'S CALLED THE "BANGER SCREEN"

once your post picks up a little early traction, code sends it to AI for a "banger initial screen".

the model is Gemma 4, not Grok ๐Ÿ‘€ (the config names it gemma4-26b, a 26-billion-parameter open model from Google).

what gets screened:

  • original posts that got some early traction
  • posts pulled back in by a priority stream or a recovery stream

what skips it:

  • replies
  • posts from private accounts

the code doesn't say how much traction counts as "a little". that number isn't in the repo.

2. IT READS BEYOND JUST THE POST

the model gets two things side by side: you, and the post.

reads:

  • the text
  • media - images and/or video (they're loaded before the model runs)
  • your name, @, bio and location

what it doesn't get on this screen: your follower count, your account age or your subscription. those fields exist, and they're switched off here.

so your bio sits next to every post it reads. if your bio says what you post about, the model has that context every single time.

Infographic 1: it reads the post, the media and your bio
โ†‘ it reads the post, the media and your bio

3. IT WRITES A FILE ON YOUR POST

here's everything on that file:

  • a short description of it
  • tags
  • topics it belongs to, each with a score, picked from ๐•'s own topic list
  • a "high quality?" yes or no
  • flags for spam, nsfw, gore and violence
  • a slop score ๐Ÿซ 
  • whether Grok can edit your image
  • a score for whether a minor appears in it

๐•'s topic list has 32 parent topics:

sports, anime, celebrity, music, news, business & finance, crypto, technology, science, gaming, movies & TV, travel, food, health & fitness, memes, art, fashion, religion, shopping, cars, aviation, motorcycles, beauty, nature & outdoors, pets, relationships, home & garden, career, dance, education, podcasts, streaming

some of them split into subtopics (sports has the most, then music, technology, news, business & finance, food, health & fitness). the subtopic names are fetched live, so they aren't in the repo.

Infographic 2: the file the model writes on your post
โ†‘ the file the model writes on your post

4. WHERE THAT FILE GOES

the flags go to a labeling system.

the rest gets saved to your post's record.

and the topics don't just sit there. the feed side of the code reads them:

  • your viewers' followed topics get loaded into their feed request
  • the topic labels on posts in someone's feed get counted, and the 2 most common get picked for topic feedback. that one ships switched off by default
  • there's a "popular posts by topic" feed built too (top 5 per topic). it's switched off right now

what the code doesn't show:

how it decides "banger" vs. "slop".

the prompt isn't in the repo, and nothing in the feed code reads the slop score. so there's no proof yet that it changes where you rank in For You.

Infographic 3: labels one way, your record the other
โ†‘ labels one way, your record the other

what's your niche btw?

so.... your niche might not even be what you say or think it is ๐Ÿ‘€

it's the topics Gemma files your posts under.

make it easy to file you:

  • pick 1 or 2 of the 32 topics you actually want to be known for
  • say the topic in plain words in the post itself, not only in the image
  • let your images show the same thing your words say
  • put it in your bio, since the bio gets read next to every post

and skip chasing the slop score. nobody outside ๐• knows what raises or lowers it yet.

this part of the code is open source. have your llm/agent read it, learn it, understand it then guide you through it: github.com/xai-org/x-algorithm

hope this helps โ™ก

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last checked 2026-09-26Organic growth ยท blog 29