On this episode of AI RADAR: **Nvidia** CEO Jensen Huang officially confirms a "huge" investment in **OpenAI**, calling reports of a rift "nonsense" and cementing their infrastructure alliance. In a geopolitical twist, Chinese regulators have granted **DeepSeek** conditional approval to purchase Nvidia's powerful H200 chips, shifting the dynamics of the Chip War.

Also, **Anthropic** is reportedly in a standoff with the **Pentagon**, insisting on strict "no-kill" guardrails for government contracts. Plus, rumors of an **OpenAI** "human-only" social network and **Apple's** continued AI brain drain.

Sources:
• Nvidia Confirms Deal: https://finance.yahoo.com/news...
• DeepSeek Chip Approval: https://www.bloomberg.com/news...
• Anthropic vs DoD: https://www.theverge.com/2026/...

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...

On this episode of AI RADAR, we break down the major shifts shaking the artificial intelligence landscape:Nvidia Pauses Investment: The proposed $100 billion deal with OpenAI has stalled due to "trust issues" and strategic concerns, leading OpenAI to seek backing from Amazon and SoftBank.Goodbye GPT-4o: OpenAI is officially retiring older models on Feb 13. Users are being forced to migrate to the new GPT-5.2 architecture to fix "sycophantic" outputs.Nvidia Under Investigation: The U.S. Congress is probing Nvidia over allegations it helped Chinese firm DeepSeek optimize chips for military applications.Sources:Based on industry news (Jan 31–Feb 1, 2026).