Tabby

Tabby is a self-hosted, open-source AI coding assistant that lets teams run their own code-completion and chat models on private infrastructure as an alternative to GitHub Copilot.

Built by TabbyML, Tabby is designed to be self-contained: it requires no external DBMS or cloud service and supports consumer-grade GPUs, making it practical to deploy on a single machine or internal server (Docker is the primary install path). It exposes an OpenAPI interface so it can be wired into existing developer infrastructure, including cloud IDEs.

Developers interact with Tabby through editor extensions for VS Code, JetBrains IDEs (IntelliJ), Vim, and Eclipse, which connect to the self-hosted server for inline completion, chat, and context-aware answers. A team-oriented "Answer Engine" indexes repositories and related sources (including GitLab merge requests) so the assistant can draw on internal knowledge.

Tabby is aimed at teams and organizations that want Copilot-style assistance but need to keep code and prompts on their own infrastructure for privacy, compliance, or cost reasons. Compared with GitHub Copilot, which is a hosted SaaS product, Tabby is self-hosted and open source. Compared with Continue and Cody, which also offer open-source editor assistants and various model backends, Tabby differentiates by shipping its own self-hostable server and model-serving stack rather than primarily acting as a client to third-party model providers.

Licensing is split: the bulk of the codebase is Apache-2.0, while enterprise-edition code under the repository's ee/ directory carries separate terms. Pricing follows a free Community tier (up to 5 users) with paid Team and Enterprise tiers for larger deployments and added administration, security, and support features.

As of September 2026, development has visibly slowed: the last stable release was v0.32.0 in January 2026, and the VS Code extension has not been updated since April 2025.