Together AI raises $800M at $8.3B valuation to scale open-source model inference
fernavid · x · 2026-09-21
Together AI announced an $800M Series C at an $8.3B post-money valuation, led by Aramco Ventures with participation from Vista Equity Partners, General Catalyst, NVIDIA, March Capital, and others.
- The company positions itself as the infrastructure layer for running open models (DeepSeek, Nemotron, MiniMax, Kimi) at a fraction of closed-model cost, with comparable or better performance
- CEO Vipul Ved Prakash framed intelligence as a foundational resource like electricity or bandwidth, arguing AI's future will be built by millions of developers on open-source models
- Thread discussion notes its publicly cited ARR ($1B+) is stale Q1 data — token volume has grown over 10x since, suggesting actual revenue is materially higher
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