Funding › AI infrastructure

Fireworks AI raises $250M Series C

Fireworks AI: Fireworks AI offers an inference cloud for running, fine-tuning and scaling open-source generative AI models.

Round
Series C
Amount
$250M
Announced
Valuation
$4B
Lead investors
Lightspeed Venture Partners, Index Ventures, Evantic
Also investing
Sequoia Capital, NVIDIA, AMD, MongoDB, Databricks
Headquarters
Redwood City, United States

Source

More: Fireworks AI funding history · rounds in October 2025 · rounds in United States

Other Fireworks AI rounds

  1. Fireworks AI raises $1.5B Series D, . AI infrastructure. Led by Atreides Management, Index Ventures, TCV. Inference platform for running and customising open models on enterprise data.
  2. Fireworks AI raises $52M Series B, . AI infrastructure. Led by Sequoia Capital. Fireworks AI offers an inference cloud for running, fine-tuning and scaling open-source generative AI models.