Originally published on AI Tech Connect.
What you need to know The round — $800M Series C, closed 1 July 2026, at an $8.3B post-money valuation. That is a 2.5x jump from the $3.3B valuation Together AI carried after its $305M Series B in February 2025. Who wrote the cheque — led by Aramco Ventures (via its US venture arm, Prosperity7 Ventures), with Vista Equity Partners, General Catalyst, Emergence Capital, Nvidia, March Capital, Pegatron and S Ventures also participating. The number that matters more than the headline — Together AI says its annualised bookings crossed $1.15B last quarter, and the round arrived with more than 500MW of compute capacity separately committed by investors. The customer story — named accounts including Cursor and Cognition are reportedly running production traffic on open-weight models (DeepSeek,…
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