Imbue team member here. The biggest difference between Sculptor and Terragon is the collaboration model. With Terragon, the agent outputs PRs. This works well for simple tasks that agents can one-shot, but is a bit clunky to use for more complex tasks that require closer human-agent collaboration imo. On the other hand, Sculptor is designed for local collaboration. Our agents run in containers too, but we let you (bidirectionally) sync to the containers, which lets you stream in the agent's uncommitted changes, and collaborate in real time. So basically, it feels like you are using Claude Code locally, but you get the safety and parallelism of running Claude in containers. I find this much more usable for real world engineering tasks!