LinkedIn quietly replaced thousands of ranking models with one 150B-parameter LLM to decide what to show on your feed!
It's called 360Brew. And if your reach has tanked over the last six months, this is why.
Here's what changed:
➡️ OLD SYSTEM: A patchwork of models counting clicks, likes, shares. Game one metric: win the feed.
➡️ NEW SYSTEM: One LLM that reads your profile, your activity, and your post as text, then decides who sees it.
It doesn't count engagement. It reads meaning.
✅ What now drives reach:
→ Saves > likes (much stronger signal)
→ Substantive comments > emoji replies (15+ words that extend the conversation)
→ Dwell time > first-hour velocity (30+ seconds on post)
→ Your last 10 posts need to tell a coherent story
❌ What gets you suppressed:
→ Engagement pods (same 20 accounts liking everything is trivially detectable)
→ Generic "Great post!" comments (zero semantic weight)
→ Profile incoherence (headline says one thing, posts say another)
Old tips: hooks, hashtags, pods, post at 7:47 AM.
New tips: pick a lane, write for one reader, let 360Brew find them.