not much happened today

**Meta** makes a major AI move by hiring **Scale AI** founder **Alexandr Wang** as Chief AI Officer and acquiring a 49% non-voting stake in **Scale AI** for **$14.3 billion**, doubling its valuation to about **$28 billion**. **Chai Discovery** announces **Chai-2**, a breakthrough model for zero-shot antibody discovery and optimization. The US government faces budget cuts threatening to eliminate a quarter million science research jobs by **2026**. Data access restrictions intensify as companies like **Atlassian**, **Notion**, and **Slack** block web crawlers including **Common Crawl**, raising concerns about future public internet archives. **Hugging Face** shuts down **HuggingChat** after serving over a million users, marking a significant experiment in open-source LLMs. **Sakana AI** releases **AB-MCTS**, an inference-time scaling algorithm enabling multiple models like **Gemini 2.5 Pro** and **DeepSeek-R1-0528** to cooperate and outperform individual models.