Together AI

Together AI, founded in 2022 and headquartered in San Francisco, is a research-driven cloud platform purpose-built for AI engineers and researchers. The company provides a full-stack infrastructure combining high-performance inference, model fine-tuning, and on-demand GPU clusters. Its offerings include serverless inference APIs, dedicated containerised inference environments, and large-scale "AI Factory" infrastructure for training and deploying generative AI models.

The platform has attracted over 450,000 developers and thousands of customers. Together AI has raised over $1 billion in funding, reaching a valuation of $8.3 billion. The company's technical focus spans AI infrastructure, systems research, generative AI, and open-source models.

Together AI describes its operating culture as one of small teams with real ownership, shipping daily, and a commitment to open innovation and transparent AI systems. The company serves AI-native application developers and research organisations building on open-source and proprietary models.