One-Minute Daily AI News 12/20/2025

1. OpenAI allows users to directly adjust ChatGPT’s enthusiasm level.[1]
2. NVIDIA AI Releases Nemotron 3: A Hybrid Mamba Transformer MoE Stack for Long Context Agentic AI.[2]
3. Meta’s Yann LeCun targets €3bn valuation for AI start-up.[3]
4. Machine learning enables scalable and systematic hierarchical virus taxonomy.[4]

Sources:

[1] https://techcrunch.com/2025/12/20/openai-allows-users-to-directly-adjust-chatgpts-warmth-and-enthusiasm/

[2] https://www.marktechpost.com/2025/12/20/nvidia-ai-releases-nemotron-3-a-hybrid-mamba-transformer-moe-stack-for-long-context-agentic-ai/

[3] https://www.ft.com/content/d88729c0-c44f-4530-b888-bafa29ee0446

[4] https://www.nature.com/articles/s41587-025-02946-9