# Together AI Raises $800M Series C to Scale Open-Source Model Infrastructure

> Together AI has raised an 800 million dollar Series C, closed on July 1, 2026, that values the company at 8.3 billion dollars, a sharp jump from the 3.3 billion it was worth in early 2025. The round was led by Aramco Ventures, with Prosperity7 Ventures also taking part, and it points to where a lot of AI money is flowing, not into another chatbot, but into the infrastructure that serves models cheaply and at scale. Together's bet is on open-source and open-weight models, offering the compute and tooling to run them fast without the lock-in of a single proprietary API. To back that up it has secured commitments for more than 500 megawatts of compute capacity, an enormous amount of power that underscores how physical the AI business has become. The investor list is telling too. Gulf sovereign money is increasingly a major force in AI infrastructure, and a Saudi-backed round of this size shows how the race to host and serve models is drawing capital from well beyond Silicon Valley. For a company selling open-model plumbing, that is a substantial war chest.

_Section: [AI Funding Tracker](https://www.wortins.com/funding) · Source: PYMNTS.com · Published Friday, August 21, 2026_

## Wortins' read

Together AI has raised an 800 million dollar Series C, closed on July 1, 2026, that values the company at 8.3 billion dollars, a sharp jump from the 3.3 billion it was worth in early 2025. The round was led by Aramco Ventures, with Prosperity7 Ventures also taking part, and it points to where a lot of AI money is flowing, not into another chatbot, but into the infrastructure that serves models cheaply and at scale. Together's bet is on open-source and open-weight models, offering the compute and tooling to run them fast without the lock-in of a single proprietary API. To back that up it has secured commitments for more than 500 megawatts of compute capacity, an enormous amount of power that underscores how physical the AI business has become. The investor list is telling too. Gulf sovereign money is increasingly a major force in AI infrastructure, and a Saudi-backed round of this size shows how the race to host and serve models is drawing capital from well beyond Silicon Valley. For a company selling open-model plumbing, that is a substantial war chest.

## Source

[Read the full story at PYMNTS.com](https://www.pymnts.com/news/artificial-intelligence/2026/together-ai-raises-800-million-to-scale-cheaper-open-source-models/)

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