What happened
Together AI, which runs a cloud for open models, closed an $800 million Series C led by Aramco Ventures. The round more than doubled the company to an $8.3 billion post-money valuation and drew NVIDIA, Vista Equity Partners, General Catalyst and Salesforce Ventures.
Together said annual bookings now exceed $1.15 billion, and it reported that open-weight model usage on its platform tripled over the period. It is among the largest developer-infrastructure raises of the year.
Why it matters
The raise puts real capital behind the idea that open models are a durable business, not a hobby. Together positions itself as the layer where teams run those models more cheaply than closed alternatives.
Strong bookings suggest enterprise demand for open-model hosting is broad rather than niche, which matters for anyone weighing where to run inference.
MintedBrain take
A well-funded neutral host lowers the risk of committing to open models for production workloads. Still, weigh vendor lock-in and pricing terms as carefully as you would with any closed provider before shifting core inference.
Discussion
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