| Company type | Private |
|---|---|
| Founded | 2022 |
| Founder |
|
| Headquarters | , United States |
| Website | www.together.ai |
Together AI is a private American technology company that provides cloud-based infrastructure, software, and tools for training, fine-tuning, deploying, and running generative artificial intelligence models. [1] [2] [3]
Together AI was founded in 2022 by Vipul Ved Prakash and a group of engineers and researchers from Stanford University, MIT, University of Chicago. The company was established to build cloud infrastructure optimized for modern generative AI workloads, particularly those based on open-source models. [4] [5]
In 2023, Together AI raised a Series A funding round of approximately $102.5 million led by Kleiner Perkins. In March 2024, the company raised an additional $106 million in a funding round led by Salesforce Ventures. [6]
In February 2025, Together AI announced a $305 million Series B financing round led by General Catalyst and co-led by Prosperity7 Ventures, valuing the company at approximately $3.3 billion. The funding was reported to support expansion of compute infrastructure and platform development. In total, the company raised just over $513 million in cumulative venture funding, supporting rapid infrastructure scale and platform expansion. [7]
In April 2023, Together AI launched RedPajama, an open source initiative to reproduce and distribute a large scale training dataset intended as an alternative to Meta’s Llama dataset. The initial release comprised approximately 1.2 trillion tokens and was designed to support the development of open source large language models. [8]
Together AI provides cloud based infrastructure and software for training, fine tuning, deploying, and running generative artificial intelligence models. [9] The company’s platform offers access to GPU based compute resources and supports a range of open source models across multiple modalities, including text, image, audio, vision, and code. [10] [11]
The platform includes application programming interfaces that allow developers to run inference and integrate models into applications without managing physical hardware. Together AI also provides tools for model customization, dataset management, and deployment workflows, enabling models to be developed, tested, and deployed within a single cloud environment. The company develops system level optimizations aimed at improving performance, efficiency, and cost effectiveness for large scale generative AI workloads. [12]
Together AI’s services are used for research, application development, and production deployment by individual developers, startups, and enterprises building generative AI systems. [8]
Together AI maintains a technical integration with ElevenLabs, an artificial intelligence company focused on voice and audio generation. Through this integration, ElevenLabs voice agents use Together AI’s platform to run language models for conversational applications. Together AI provides infrastructure for model inference, while ElevenLabs supplies speech synthesis and audio generation capabilities. The integration enables developers to combine natural language processing with voice based interfaces. [13]
Together AI operates in the AI infrastructure and cloud computing sector, serving developers, startups, and enterprises building generative AI applications. The company’s services are used to support research, application development, and production deployment of AI models. Together AI maintains data center infrastructure and offers its services through cloud-based environments, including options for enterprise deployments. [14] [15]
In 2025, Together AI announced a major expansion into Europe through a strategic infrastructure partnership with Hypertec and 5C Group. The company described the initiative as its largest infrastructure deployment in the region, with initial rollouts expected to begin in late 2025 and large scale buildouts planned through 2028. The expansion is intended to support growing demand for regulation ready and sovereign AI infrastructure in Europe, including large scale model training and inference workloads.
As part of the expansion, Together AI reported plans to deploy up to 2 gigawatts of AI dedicated data center capacity and nearly 100,000 NVIDIA GPUs across several European countries, including France, the United Kingdom, Italy, and Portugal. The company stated that the infrastructure is designed to meet European regulatory and data sovereignty requirements while supporting generative AI development. [16]
Together AI also expanded its European operations through team growth and acquisitions. On December 12, 2024, the company acquired CodeSandbox, an Amsterdam based provider of cloud development environments. The acquisition expanded Together AI’s engineering and research presence in Europe and supported the integration of code execution and development tools into its platform.
In 2025, Together AI acquired Refuel.ai, a company focused on transforming unstructured data into structured datasets for AI applications. The acquisition was reported to strengthen Together AI’s capabilities related to data preparation and enterprise AI workflows. [17]