By Sam Nussey and Anton Bridge TOKYO (Reuters) -SoftBank CEO Masayoshi Son's plan to invest billions in AI in the United States shows one way to handle the new Trump administration: go big and deal with the details later.

Tokyo stocks were sharply higher Wednesday morning, led by rises in SoftBank Group following news it would be part of a massive artif

DeepSeek-R1-Zero, a model trained via large-scale reinforcement learning (RL) without supervised fine-tuning (SFT) as a preliminary step, demonstrates remarkable reasoning capabilities. Through RL, DeepSeek-R1-Zero naturally emerges with numerous powerful and intriguing reasoning behaviors.

Tokyo stocks ended sharply higher Wednesday, driven by gains in semiconductor-related shares following news that SoftBank Group will

SoftBank Group shares jumped after the company and ChatGPT-maker OpenAI announced plans to invest up to half a trillion dollars in artificial-intelligence infrastructure in the U.S. Shares rose 8.8% to 10,060 yen, or equivalent to $64.69, on Wednesday in Tokyo, after climbing as much as 9.2% earlier, to their highest level since July.

Masayoshi Son founded SoftBank in 1981. It has invested millions in some of Silicon Valley's biggest tech companies.

Investors made a quick exit from a host of technology stocks from Tokyo to New York on Monday as the emergence of a low-cost Chinese artificial intelligence model challenged the dominance of current AI leaders such as Nvidia .

Technology stocks such as Tokyo Electron, SoftBank Group, Advantest and Fujikura plunged 5-11 percent amid DeepSeek's emergence as a disruptive force in the AI landscape.

OpenAI and Japanese conglomerate SoftBank will each commit $19 billion to fund Stargate, a joint venture to develop data centers for artificial intelligence in the U.S., the Information reported on Wednesday.

The partnership formed by Oracle, OpenAI and SoftBank is due to invest up to $500 billion. SoftBank's shares rose 3.7% on Thursday in Tokyo trading after jumping 11% the day before. Elsewhere in Asia, the S&P/ASX 200 in Australia fell 0.6% to 8,383.50, while the Kospi in Seoul lost 0.8% to 2,526.98.

SoftBank Group shares jumped after the company and ... or equivalent to $64.69, on Wednesday in Tokyo, after climbing as much as 9.2% earlier, to their highest level since July.

DeepSeek topped the Apple App Store chart and sparked fears the Chinese company was quickly catching up with OpenAI's ChatGPT while costing far less.