GitLab Duo

What is GitLab Duo?

GitLab Duo is GitLab's AI suite for the software lifecycle. Its current focus is the Duo Agent Platform, which uses specialized agents and multi-step flows for planning, coding, security and analytics, alongside Duo Chat and Code Suggestions.

Key capabilities of GitLab Duo

• Duo Chat: agentic chat for generating code and tests and automating documentation.
• Code Suggestions: in-editor code completion.
• Agent Platform: agents for planning, coding, security and analytics, managed in an AI Catalog.
• Security Analyst agent: analyzes vulnerabilities, dismisses false positives and gives guidance.
• CI/CD diagnosis flow: analyzes the root cause of pipeline failures and opens a merge request with a fix.
• Custom agents and flows: teams can customize and manage their own.

How GitLab Duo works

Agents and flows run inside GitLab with access to your project context, for example diagnosing a failed pipeline and proposing a fix as a merge request. The Duo Agent Platform needs GitLab 18.8 or later on Premium or Ultimate.

Who uses GitLab Duo?

Teams that already host source code and CI/CD on GitLab and want AI assistance inside the same platform.

GitLab Duo pricing

Duo Agent Platform pricing is usage-based, using GitLab Credits pooled across the organization, with spend caps by subscription, group or user. Contact sales for Premium and Ultimate pricing. The vendor offers a 60-day Ultimate trial including Duo Agent Platform.

GitLab Duo alternatives

Tabnine is an IDE-based code assistant with an emphasis on privacy and deployment control, not a lifecycle platform. Cursor is an AI-first editor, whereas Duo works inside GitLab's merge requests and pipelines. Snyk DeepCode AI concentrates on security scanning and fixes.