Upstage Gets Nvidia as Investor in Series C Round After Amazon, AMD
South Korean AI company Upstage says Nvidia will join its ongoing Series C second round, adding to Amazon and AMD as backers. The amount was not disclosed.

South Korean AI company Upstage said on 9 November that Nvidia will take part as an investor in its ongoing second Series C round. The company did not disclose the investment amount or the size of the stake.
Nvidia joins Amazon and AMD, which have already backed the startup. Upstage says it plans to use the line-up of global tech names to strengthen its own AI models and expand its business abroad.
Unicorn status and model traction
Upstage closed the first Series C round in April, raising 180 billion won (about 180 billion Korean won in total) and winning a valuation of more than 1 trillion won. According to the company, that made it the first South Korean generative AI firm to reach unicorn status.
The company is pushing its in-house large language models, Solar Pro 4 and Solar Mini 4, in global markets. Upstage says both models reached the top tier of closed-model token usage on the OpenRouter AI model platform, the first Korean models to do so.
Where the money goes
Proceeds from the Series C will go toward improving Solar and other in-house models, hiring key talent in Korea and abroad, and expanding into the United States and Japan. Upstage aims to win global customers with models that combine strong performance and cost efficiency, building on the technology and business experience gained in its home market.
CEO Kim Sung-hoon said the company is pleased to welcome Nvidia as a new investor. He said Korean-built AI models have shown they can work in global settings, and that Upstage will use the planned investment to raise the competitiveness of its models and grow into an AI company that leads the global market.
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