Nvidia Halts OpenAI Deal, GPT-4o Retired & Congress Probes DeepSeek Ties

Major shake-ups in the AI industry today. **Nvidia** has reportedly paused its massive $100 billion investment plan with **OpenAI** due to "trust issues" and strategic doubts. CEO Jensen Huang is now pivoting toward a direct equity stake, leaving OpenAI to seek capital from Amazon and SoftBank. Meanwhile, **OpenAI** confirms it will retire GPT-4o and o4-mini on February 13, 2026. The company is forcing a migration to **GPT-5.2** to utilize more efficient architecture and eliminate the "sycophancy" found in older models. In Washington, the U.S. Congress has launched a probe into **Nvidia** over allegations it helped Chinese firm **DeepSeek** optimize AI models now utilized by the Chinese military. Sources: • Nvidia Investment Pause: https://finance.yahoo.com/news... • OpenAI Retires GPT-4o: https://openai.com/blog/model-... • Congress Probes Nvidia: https://politics.com/news/nvid...