xAI, the artificial intelligence company, has been experiencing a wave of departures, including co-founder Yuhuai (Tony) Wu, according to The Verge. The restructuring followed tensions over safety and being stuck in the catch-up phase, former employees stated. In other news, the World Health Organization (WHO) condemned a US-funded vaccine trial as unethical for withholding a potentially life-saving hepatitis B vaccine from newborns in Guinea-Bissau, Africa, as reported by Ars Technica.
The departures at xAI have been ongoing, with Wu's announcement coming on Tuesday and Wednesday, according to The Verge. The reasons behind the staff exodus included disagreements over safety protocols and the company's progress in the competitive AI landscape, former employees said.
Meanwhile, the WHO's statement, released on Friday, cited numerous ethical and scientific concerns with the US-funded trial. The trial's design, which would deny some newborns access to a proven vaccine, was deemed inconsistent with established principles. The trial has faced widespread criticism from health experts since its funding was made public in December, Ars Technica reported.
In other developments, Nvidia researchers have developed a new technique, dynamic memory sparsification (DMS), that can reduce the memory costs of large language model (LLM) reasoning by up to eight times without sacrificing accuracy, VentureBeat reported. The DMS technique compresses the key value (KV) cache, the temporary memory LLMs use. Experiments showed that DMS allows LLMs to "think" longer and explore more solutions.
Additionally, workers at the Social Security Administration (SSA) have been instructed to share information about in-person appointments with agents of Immigration and Customs Enforcement (ICE), Wired reported. An employee, speaking anonymously, confirmed the directive, which applies to appointments for individuals needing sign language interpreters or those needing to change direct deposit information. Noncitizens are also required to appear in person to review continued eligibility.
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