Fireworks AI

Sources: inference cloud startup Fireworks AI is in talks to raise funding at a $15B valuation, up from $4B after it announced a $250M round in October 2025

Fireworks AI, a startup that helps companies run artificial intelligence models, is in talks to raise a new round of funding …

Fireworks AI, which helps developers access AI chips and models, raised a $254M Series C at a $4B valuation, split into a $230M primary and $24M secondary round

Belle Lin / Wall Street Journal :

Fireworks AI, which helps companies fine-tune and customize AI models, raised $52M led by Sequoia at a $552M valuation, taking its total funding to $77M

Fireworks AI, which helps companies fine-tune and customize AI models, raised $52M led by Sequoia at a $552M valuation, taking its total funding to $77M

- Startup's platform lets companies access multiple AI models  — Investors put $52 into the company, led by Meta alum Lin Qiao