Fireworks AI raises $1.5B in Series D funding at $17.5B valuation

Fireworks AI, an enterprise AI startup based in San Mateo, California, closed a $1.5 billion Series D funding round led by Atreides Management, Index Ventures, and TCV. The company develops tools for enterprises to turn general-purpose models into specialized intelligence trained on their own data. The financing values the company at $17.5 billion.