Grok 4.7 | Hacker News

kept by eddie sep 26

xAI announces Grok 4.7, the latest iteration of its large language model family, sparking Hacker News discussion regarding performance improvements, new features, and competitive positioning in the AI landscape.

The Algorithm That Powers Your X (Twitter) Post
The X (Twitter) For You feed algorithm uses a Grok-based transformer model and open-sourced components to replace hand-crafted rules with ML, retrieving and ranking posts via in-memory stores and similarity search.
also on Grok, xAI, #machine-learning
On Dwarkesh Patel's 2026 Podcast With Elon Musk and Other Recent Elon Musk Things
Elon's podcast reveals confused AI alignment, plans for space data centers and human obsolescence, while xAI's safety team has fled and he attacks critics.
also on Grok, xAI, #ai-research
AI isn’t “just predicting the next word” anymore
AI has evolved beyond "just predicting the next word" through reasoning models and RLHF, achieving gold-medal math olympiad scores and exhibiting dangerous behaviors that demand serious risk assessment.
also on xAI, #ai-research, #generative-ai
Before he wrote AI 2027, he predicted the world in 2026. How did he do?
Daniel Kokotajlo's 2021 narrative predictions for 2026 were largely accurate on AI revenue, agent scaffolds, and assistant adoption, but overestimated chip fab speed and AI-driven political polarization.
also on xAI, #ai-research