Upstage

Upstage is an AI company that builds large language models and document processing engines for enterprise workflows. Its product portfolio includes Solar Pro 3 and Solar Mini LLMs optimized for reasoning and instruction following, Document Parse for converting complex documents into machine-readable formats, Information Extract for structured data extraction, and Upstage Studio for building and deploying AI agents. The company serves industries where accuracy is mission-critical, including insurance, healthcare, financial services, and manufacturing, automating claims processing, medical record handling, lending workflows, and compliance tasks. Upstage has published 140+ papers at top AI conferences and ranked first on the Hugging Face Open LLM Leaderboard. Recognized in CB Insights AI 100 (2025), the company offers flexible deployment via API, AWS Marketplace, or on-premise. Founded in 2020 and headquartered in San Jose, California, with operations in Seoul, South Korea, Upstage has raised over $285 million at the Series C stage from investors including KT, SK Networks, Amazon, AMD, Korean Development Bank, Shinhan Venture Investment, and Mirae Asset.