Tabby is an open-source, self-hosted AI coding assistant, positioned as an on-premises alternative to GitHub Copilot. A single server provides code completion, an in-IDE answer engine, inline chat and data connectors, with an OpenAPI interface for integration into existing infrastructure. It is self-contained, needing no separate database or cloud service, and runs on consumer-grade GPUs. It is typically started as a Docker container with a locally chosen model. The source is licensed under Apache 2.0, apart from enterprise-edition code under a separate licence.
Tabby is developed by TabbyML, Inc., which also offers team and enterprise plans and a newer agent product, Pochi, as a cloud solution. When Tabby is self-hosted, models and source code stay on infrastructure that you control, and the project states that no cloud service is required. The privacy policy on tabbyml.com covers website visitors and customers and does not describe telemetry of self-hosted instances.