Together AI

Together AI is an AI cloud platform that provides fast, affordable infrastructure for training and running open-source AI models. Together offers a complete AI platform including serverless inference, fine-tuning, custom model training, and a GPU cluster cloud for large-scale workloads.

Together AI differentiates through its commitment to open-source AI: the company actively contributes to open model development (including the RedPajama dataset project) and optimizes its infrastructure specifically for serving open-source models efficiently. The platform supports hundreds of models from the Llama, Mistral, Qwen, and other model families.

In the inference and compute layer, Together AI provides the infrastructure that makes open-source AI models practically accessible — turning community-developed models into fast, reliable API endpoints that agents and applications can depend on.