According to Last Week in AI Podcast #237, NVIDIA has announced Nemotron 3 Super, described as an open hybrid Mamba-Transformer mixture-of-experts (MoE) model designed for agentic reasoning. The model represents a combination of different architectural approaches in AI model design.
In corporate developments, the podcast reports that another cofounder has departed from XAI, Elon Musk’s artificial intelligence company. This marks a continued shift in the leadership structure of the organization, though specific details about the departing cofounder were not provided in the source material.
Meanwhile, Anthropic has filed a lawsuit against the Department of Defense, according to the podcast. The source did not elaborate on the specific nature of the legal dispute or the claims being made in the lawsuit. These three developments represent significant movements across different sectors of the AI industry, from open source model releases to corporate restructuring and government relations.