Upstage

Upstage is a South Korean AI company specializing in document AI and large language models optimized for business applications. Founded by former Naver AI researchers, the company has built one of the most capable document processing AI platforms available.

Upstage's flagship product is Solar, a family of efficient large language models that punch above their weight class — delivering competitive performance with smaller model sizes, making them practical for enterprise deployment. The company also offers Document AI for intelligent document processing (OCR, layout analysis, information extraction), which is widely used in Korean enterprises for automating paperwork-heavy business processes.

Upstage has gained international recognition by topping various AI benchmarks with its relatively small models, demonstrating that smart architecture and training approaches can compensate for smaller scale. The company serves Korean enterprises and is expanding internationally, competing in both the LLM and document AI markets.