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AI agents are starting to earn a real place in continuous integration pipelines: reviewing diffs, proposing fixes, generating missing tests. Six months of real-world use to separate the patterns that work from the ones that end up costing more time than they save.
Two years running AI-assisted code review in a real team leave a clear balance: AI catches mechanical oversights well and writes useful pull-request summaries, but it struggles with architectural judgment and produces many false positives on subtle bugs. The single decision that helped the most was not blocking merges on its automated comments.
GitLab Duo brings native AI into the whole devops flow: code completion, chat, MR summaries and vulnerability explanation. Duo Pro costs 19 dollars per user monthly on top of Premium or Ultimate, the same as GitHub Copilot Business. It pays off when your team already lives in GitLab.
