China's DeepSeek updates V3 model in challenge to OpenAI's GPT-4.5

Version improves on predecessor and outperforms U.S. rival in some tasks

20250326 Deepseek

DeepSeek, symbolic of Chinese AI ingenuity, has helped the Hang Seng Tech Index surge around 25% since the start of 2025. © Reuters

CISSY ZHOU

HONG KONG -- Chinese AI startup DeepSeek quietly released an update to its V3 large language model on Tuesday evening, significantly enhancing its reasoning capabilities and further escalating competition with U.S. rival OpenAI.

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