Demand for Nvidia's pricey artificial intelligence chips will be in focus when the company reports results on Wednesday (Feb 26) as investors doubt the hefty spending on the technology after low-cost AI models from China's DeepSeek rattled the industry . The world's second most valuable company has been the top beneficiary of an AI-driven spending spree by big technology companies over the past two years. But claims that DeepSeek's AI models rival its Western counterparts at a fraction of the