Dave Wehner is leaving Meta after 14 years to become chief financial officer of Fireworks AI, an artificial intelligence inference and model-training platform founded in 2022 by former Meta engineers. Wehner announced the move on X on Friday after serving as Meta’s chief financial officer from 2014 and chief strategy officer from 2022. Fireworks helps companies customize and run open AI models with proprietary data. CEO Lin Qiao said Wehner will oversee the startup’s financial and operational expansion. The company processes more than 40 trillion tokens daily and counts Uber, Shopify and Doximity among its customers. Fireworks raised $1.505 billion in a July 2026 Series D round at a $17.5 billion post-money valuation and reached a $1 billion annualized revenue run rate by mid-2026, up from $100 million in about 16 months. Business Insider reported that the company is in early discussions about another fundraise at a possible valuation of $30 billion to $40 billion.