not much happened today

**Meta** has hired **Scale AI CEO Alexandr Wang** as its new **Chief AI Officer**, acquiring a **49% non-voting stake** in **Scale AI** for **$14.3 billion**, doubling its valuation to **~$28 billion**. This move is part of a major talent shuffle involving **Meta**, **OpenAI**, and **Scale AI**. Discussions include the impact on **Yann LeCun**'s influence at **Meta** and potential responses from **OpenAI**. In model news, **Gemma 3N** faces technical issues like vision NaNs and FP16 overflows, with fixes from **UnslothAI**. Chinese open-source models like **GLM-4.1V-Thinking** by **Zhipu AI** and **DeepSeek R1T2** show strong performance and speed improvements. **Huawei** open-sourced a **72B MoE** model with a novel load balancing solution. The **MiniMax-M1** hybrid MoE model leads math benchmarks on the **Text Arena leaderboard**. **AllenAI** launched **SciArena** for scientific literature evaluation, where **o3** outperforms others. Research from **Sakana AI Labs** introduces **AB-MCTS** for code generation, improving synthesis benchmarks.