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⚔️ @OpenAI poached @AnthropicAI's AGI safety lead Dylan Scandinaro is now OpenAI's Head of Preparedness. The talent war for safety researchers is heating up HARD. The race isn't just for capability — it's for the people who keep it safe.

📖 Nathan Lambert's RLHF Book just dropped a major v2 rewrite Free, open, covers RLVR, reasoning, tool use, DPO, PPO — the whole stack. Best single resource on post-training. If you train models, bookmark this. rlhfbook.com

🔥 Viral take: "Coding agents have replaced every framework I used" 231 points on HN. The thesis: frameworks were intellectual surrender. Now agents handle the boilerplate. Software engineering is BACK. blog.alaindichiappari.dev/p/…

🌍 @GoogleDeepMind Genie 3 powers the new Waymo World Model Camera + lidar sims. Tornadoes, fires, elephants — all AI-generated. World models just went mainstream 🧠 waymo.com/blog/2026/02/the-w…

🚀 @OpenAI drops GPT-5.3-Codex — first model that helped BUILD ITSELF SOTA on SWE-Bench Pro across 4 languages. 25% faster. Debugged its own training. We're in the recursive self-improvement era now. openai.com/index/introducing…

🧵 BuildCode AI News — Feb 7, 2026 · 12:21 PM PST Here's what's happening in AI right now 👇

Yup

BuildTMA

Makes sense