One unified training platform
Train, evaluate, and deploy improvements on your own platform, without waiting for a lab or the next big model release.
The platform for continual learning
You know what good looks like.
Now you can craft your models around your taste on one platform—and watch them learn from every customer interaction.
The platform
Shape, evaluate, and ship improvements, all on one intuitive platform made for the experts on your team, not just researchers in a lab.





Trajectory works with any agent harness and takes just two code changes to get started.
Bring examples of what good looks like and run sophisticated trainings in one click. See how your model performs and steer it towards your goals.
See where and why your model delivers the best results against other leading models. Identify gaps and easily make improvements.
When you're ready to launch, push updates live with just a click.
The vision
Shaping your models is just the beginning. We're building the key tools that let you scale your expertise and own your entire learning loop.
Train, evaluate, and deploy improvements on your own platform, without waiting for a lab or the next big model release.
Define what good looks like for a subset of traces. Let Continual Grading apply it across all your production data, scaling your taste in seconds.
Enable your models to train on every production interaction with Group Size 1 instead of freezing at launch, so they keep improving over time.
“Here's Trajectory and Harvey using Nemotron, post-trained it and created their own frontier-level capability.”
Jensen Huang, Founder and CEO of NVIDIA, at GTC on Trajectory and Harvey post-training Nemotron into frontier-level capability.
SOC 2 Certified
Our high data governance standards mean you define the boundaries of what your systems learn from.
Every model update runs through your eval suite and approval workflow before it touches production.
Audit every training run and improvement. See exactly what the system learned, why it changed, and how it performs.
The team
We're researchers who brought continual learning to robotics, 3D foundation models, and SWE‑1. We're also product designers who've shipped products that millions use every day. We believe true intelligence doesn't stand still. So we're building a future where every company can shape where its intelligence goes next.
Built by researchers from
$60M Series A + Seed