Trajectory, an 18-person startup founded about a year ago by three Stanford classmates with experience at Google DeepMind and Apple, raised a $45 million Series A at a $300 million valuation, led by Sequoia with participation from Nvidia, Bessemer Venture Partners and Bain Capital Ventures. Alongside the funding, the company made its post-training platform publicly available.
The platform lets businesses connect open-source models to their applications, collect performance feedback and retrain models for specialized tasks. Trajectory lists Harvey, Rogo, Decagon, Mercor and Nvidia as customers.
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