> Wall Street stepped up its questions about the massive outlays after the Chinese upstart DeepSeek released a new open-source AI model that it claims rivals th

> Wall Street stepped up its questions about the massive outlays after the Chinese upstart DeepSeek released a new open-source AI model that it claims rivals the abilities of US technology at a fraction of the cost. And that's the crux of it and that's also why DeepSeek was such a big deal.