Fireworks AI

Fireworks AI specializes in delivering optimized infrastructure solutions for deploying and fine-tuning open-source AI models, focusing on high-performance inference and efficient model training. Their platform supports a wide array of generative AI models, including large language models (LLMs), image and video generation, and multimodal models, enabling developers to build and scale AI applications effectively.

Founded in 2022 by CEO Lin Qiao, Fireworks AI has rapidly established itself in the AI infrastructure sector. The company was featured on Forbes' Next Billion-Dollar Startups list in 2024, reflecting its significant growth and impact in the industry. In October 2025, Fireworks AI secured $250 million in funding at a valuation of $4 billion, co-led by Lightspeed Venture Partners, Index Ventures, and Evantic, bringing its total funding to nearly $330 million.

The company's flagship product, Fireworks Inference, offers a fully disaggregated inference engine optimized for high throughput and low latency. This engine is designed to serve both frontier open models and custom-trained versions, providing up to four times higher throughput compared to industry standards without compromising model quality. Fireworks Inference supports various deployment options, including serverless, on-demand, and reserved deployments, catering to different scalability and performance needs.

Fireworks AI's clientele includes prominent companies such as Samsung, DoorDash, and Verizon, indicating its strong presence in the enterprise sector. The company has also formed strategic partnerships with leading investors like Sequoia Capital and Nvidia, underscoring its significant position in the AI infrastructure market. Its main competitors include other AI infrastructure providers like CoreWeave and Lambda Labs, which offer similar services in model deployment and optimization.