Security and scale bracketed the day: Hugging Face detailed an agentic intrusion their own AI triage caught, while Alibaba previewed a 2.4T-parameter Qwen3.8 Max promising open weights. On the research side, new work on step-by-step information evaluation and fresh resources on multi‑agent debate surfaced, alongside pragmatic engineering on token‑efficient deep research and cautionary voices about latent backdoors in open models.