Post-training you call. Not post-training you staff.

Open weights now carry more than half the tokens routed through OpenRouter at a fraction of the spend. The capability gap to closed models is down to a few percent. Anyone can download them. Turning one into a model that beats the frontier on your work still takes a team: engineers to find the capability gaps and write the verifiers and build the environments and run the training and prove the model actually improved. Then all of it again every time a new base model ships. That is why almost nobody does it. bandr is building that loop as a service. Point us at work carrying a correctness signal. We measure where a smaller model falls short of a frontier one. We generate environments around what is missing. We train against verifiers grounded in your own artifacts. We quantify the gain before anything ships.