GitLab Duo

GitLab's AI for the full SDLC — Code Generation, Code Review Flow, Duo Agent Platform, and AI credits inside Premium and Ultimate.

AI Code Tools
Visit Tool Compare

About GitLab Duo

GitLab Duo brings AI to the entire software development lifecycle inside GitLab. Duo Pro adds code generation, test generation, and code refactoring for $19/user/mo on top of Premium or Ultimate; Duo Enterprise adds root-cause analysis, vulnerability explanations, and AI-powered code review for $39/user/mo on Ultimate. The Duo Agent Platform reached GA on January 15, 2026 — shifting from individual coding assistance to AI agents across planning, security, delivery, and operations. GitLab Premium bundles $12/user/mo in AI credits; Ultimate bundles $29/user/mo. Code Review Flow costs $0.25 per review.

Key Features

AI code generation, refactor, and test creation
Code Review Flow in merge requests ($0.25/review)
Duo Agent Platform GA (Jan 2026)
Root-cause + vulnerability explanations on Enterprise
Duo Pro $19/user/mo on Premium / Ultimate
Duo Enterprise $39/user/mo on Ultimate only
$12 (Premium) or $29 (Ultimate) AI credits bundled
AI agents across plan, dev, secure, operate

Use Cases

Generate code, refactors, and tests inside GitLab
Run AI code review on merge requests
Diagnose root causes of incidents with AI
Auto-explain detected vulnerabilities
Run AI agents across the full SDLC
Bundle DevOps + AI inside one platform

Pros & Cons

Pros

  • AI lives in the GitLab platform you already use
  • Bundled AI credits on Premium / Ultimate
  • Full SDLC AI agent platform (now GA)
  • Strong security + compliance posture

Cons

  • Requires Premium or Ultimate base license
  • Duo Enterprise $39/user/mo on top is steep
  • Best AI features gated to top tier
  • Less mature than GitHub Copilot ecosystem