Self-serve platform for post-training AI models on production data
trajectory.ai/field-notes/introducing-the-trajectory-platform
The Trajectory platform is a self-serve product for post-training models on production data. Teams bring their own agents (it works with any agent harness and takes a few lines of code to connect), capture traces and corrections from production, train with one click, compare results against frontier models and deploy updates on demand. It includes Continual Grading, which learns from a few examples of expert judgment and applies those standards across production data, and Group Size 1, which trains on real production interactions so a model keeps improving after it ships.