GitLab Duo

GitLab Duo is GitLab's suite of AI-powered features embedded throughout its DevSecOps platform, providing AI assistance at every stage of the software development lifecycle. Unlike standalone coding assistants, GitLab Duo integrates AI into merge request workflows, CI/CD pipelines, security scanning, and project planning within the platform you already use for version control.

Its Code Suggestions feature provides real-time autocomplete and code generation in VS Code and JetBrains IDEs, powered by a combination of proprietary and third-party models. The Duo Chat interface lets developers ask questions about their GitLab project, including issues, merge requests, and pipeline configurations.

For code review, GitLab Duo automatically summarizes merge request changes, identifies potential issues, and suggests improvements, significantly reducing review turnaround time. The security features are particularly strong, offering AI-powered vulnerability explanation and remediation guidance that contextualizes findings within your specific codebase.

GitLab Duo also helps with root cause analysis when CI/CD pipelines fail, analyzing logs and suggesting fixes. For organizations already on GitLab, Duo eliminates the need for separate AI coding tools by providing an integrated experience. It supports self-managed GitLab instances, keeping code and AI interactions within your own infrastructure.

The AI features are available as an add-on to GitLab Premium and Ultimate tiers.