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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 staged a moderate rebound on Tuesday, rising as much as 3%, following a 17% drop the prior day. More broadly, major US indexes rallied after the S&P 500 and Nasdaq 100 saw sharp losses on Monday amid concerns over the Chinese AI firm DeepSeek's rapid and seemingly cost-effective advances.