AI Post-Training Platform Trajectory Raises $45M Series A - WOWTALE
Summary
Trajectory raised a $45 million Series A at a $300 million valuation. The company builds a post-training platform that helps customers refine AI models for specific tasks using real production feedback and expert standards. It launched two new research previews, Continual Grading and Group Size 1, to reduce manual labeling and support continual learning. Harvey, Rogo, Decagon, Mercor, and NVIDIA already use the platform, and the company says it can improve model performance quickly and at lower cost.
Funding
Amount
$45.0M
Total raised
Date
November 4, 2026
Announcement date
Investors
Bessemer Venture Partners, Bain Capital Ventures, Sequoia Capital, Apple
Lead investors
Company
trajectory.ai
Funded company
AskAI Classifications
Sectors
No sectors detected
Functions
Developer and IT Infrastructure
Infrastructure Management
Development Platforms
Linked Companies
Trajectory
$1M to $5M