Twitter’s New Grok Algorithm Rewrites the Growth Playbook | Hacker News

In January 2026, X replaced its legacy ranking system with a Grok-powered transformer model that actually reads your tweets.Key changes: - 5B ranking decisions daily, processed in <1.5s - The algorithm now READS tweet text using transformer embeddings (not just keyword matching) - It WATCHES videos to understand content - Distribution is determined before any engagement happensThe engagement hierarchy (weight vs. a Like): - Like: 1x - Bookmark: 10x - Reply: 27x - Quote tweet: 25x - Retweet: 20x - *Reply that gets a reply from author: 150x*The big shift: Twitter moved from "counting actions" to "comprehending content." Semantic relevance now trumps follower count.For indie hackers, this means: 1. Niche content can go viral without an existing audience 2. First 30-60 minutes are critical (velocity matters) 3. Conversations > broadcasting 4. Manual growth is unsustainable given velocity requirementsThoughts? Anyone else tracking these algorithm changes and their implications for bootstrapped SaaS marketing?