Jose Najarro has positions in Advanced Micro Devices, Marvell Technology, Microsoft, and Nvidia. The Motley Fool has p

Chinese startup DeepSeek has achieved what many (including experts) thought impossible: create a foundational, competitive AI model for just $5.6 million. By comparison, OpenAI’s unreleased GPT-5 (codenamed “Orion”) reportedly requires $500 million for six months of training.

Nvidia shares' 9% recovery Tuesday was the second-best day in terms of market cap added for any company ever—but the company faced another selloff Wednesday.

Short sellers of artificial intelligence-related stocks raked in bumper profits after the smashing debut of low-cost AI models from China's DeepSeek spooked Wall Street, with bets against Nvidia yielding record profits totaling more than $6 billion.