not much happened today

**Meta** has poached top AI talent from **OpenAI**, including **Alexandr Wang** joining as Chief AI Officer to work towards superintelligence, signaling a strong push for the next **Llama** model. The AI job market shows polarization with high demand and compensation for top-tier talent, while credentials like strong GitHub projects gain importance. The **WizardLM** team moved from **Microsoft** to **Tencent** to develop open-source models like **Hunyuan-A13B**, highlighting shifts in China's AI industry. Rumors suggest **OpenAI** will release a new open-source model in July, potentially surpassing existing **ChatGPT** models. **Baidu** open-sourced multiple variants of its **ERNIE 4.5** model series, featuring advanced techniques like **2-bit quantization**, **MoE router orthogonalization loss**, and **FP8** training, with models ranging from **0.3B** to **424B** parameters. **Gemini 2.5 Pro** returned to the free tier of the **Gemini API**, enabling developers to explore its features.