Sam Altman says GPT-5.4 is OpenAI’s best conversational model yet, but admits it still has three important weaknesses to fix.

Nvidia (NVDA) stock took a hit on Monday, dropping over 3% as reports surfaced that its planned $100 billion investment in OpenAI had stalled. The semiconductor giant's shares continued to slide ...

Sam Altman, head of ChatGPT maker OpenAI, told a global artificial intelligence conference on Thursday that the world "urgently" needs to regulate the fast-evolving technology. An organisation could ...