Open-weight model developer Arcee AI reaches $1B-plus valuation with new funding

Arcee AI, a San Francisco-based developer of open-weight AI models, raised an undisclosed Series B funding round led by Vista Equity Partners and others, valuing the company over $1 billion. Arcee aims to compete with Chinese AI firms by providing open-weight models like its 400-billion-parameter Trinity Large, promoting U.S. control over AI technology.