Kimi is Moonshot AI's terminal coding agent. The original Python project has been archived and replaced by Kimi Code from the same team, which still installs a kimi command. HagiCode is a desktop and web workbench that launches kimi as one of its Agent CLIs and adds parallel sessions, proposals and commits around it. It does not replace Kimi and it does not sell Kimi access.
If you want a fast single-binary agent in your terminal, and perhaps in Zed or JetBrains over ACP, stay with Kimi alone. Add HagiCode when you run several tasks at once or want a spec-driven workflow on top of the same login.