China's DeepSeek AI rattles Wall Street, but questions remain

The DeepSeek logo is seen in this illustration taken Jan. 27, 2025.

Chinese researchers backed by a Hangzhou-based hedge fund recently released a new version of a large language model (LLM) called DeepSeek-R1 that rivals the capabilities of the most advanced U.S.-built products but reportedly does so with fewer computing resources and at much lower cost.