By Eduardo Baptista, Ethan Wang and Che Pan BEIJING, April 24 (Reuters) - DeepSeek, the Chinese startup whose low-cost AI model stunned the world last year, launched on Friday a preview of a highly awaited new model adapted for Huawei chip technology,

The narrow gap between DeepSeek and leading U.S. models, as well as its low prices, raises questions about OpenAI and Anthropic's competitive moat.