Neocloud Together AI has closed an $800 million funding round, pushing its valuation to $8.3 billion. The company specializes in hosting open-source AI models on its neocloud infrastructure platform.
This round represents a 2.5x jump from the company's previous $3.3 billion valuation just months earlier in early 2025. The rapid revaluation reflects accelerating demand for alternatives to closed-source AI platforms like OpenAI and Anthropic.
Together AI targets developers and enterprises seeking to run open-source models like Llama, Mistral, and others without vendor lock-in. The company's infrastructure abstracts away complexity around model deployment, fine-tuning, and inference, positioning itself as the operational backbone for open-source AI adoption.
The neocloud category itself remains nascent but competitive. Together AI competes with other open-source infrastructure plays including Replicate and Modal, while broader cloud providers like AWS and Azure increasingly offer native support for open-source models. However, Together AI's specialized focus on model hosting and optimization gives it deeper capabilities in that specific segment.
The $800 million raise signals strong investor conviction in the open-source AI infrastructure thesis. As enterprises move beyond chatbot experimentation toward production deployments, infrastructure providers that simplify running diverse models gain leverage. Together AI's trajectory also reflects the broader shift away from single-vendor AI dependencies toward modular, portable stacks.
The funding round comes as the open-source AI ecosystem matures rapidly. Models like Meta's Llama have achieved near feature parity with proprietary alternatives, removing a key barrier to enterprise adoption. Together AI benefits from this shift by offering the operational sophistication enterprises need to run open-source models at scale.
The company must execute quickly to justify its $8.3 billion valuation. Infrastructure companies historically face pricing pressure and commodit