Code Review without the bottlenecks or the bill
Source: GitLab Blog
Developers are shipping more, faster with AI assistance, but that velocity creates a new challenge: the review queue. Code review has become one of the biggest bottlenecks in modern software delivery, especially for teams that rely on a handful of engineers to manually review every merge request. The proliferation of AI coding tools across engineering teams adds to the problem, as each tool generates code that is reviewed in isolation without unified guardrails, leading to inconsistency at scale.
GitLab built Code Review Flow, an agentic AI workflow within the GitLab Duo Agent Platform, to automatically review merge requests as they’re opened. It analyzes code in the context of the repository, pipeline, security findings, and compliance requirements, delivering consistent, actionable feedback without waiting for an engineer.
Hundreds of reviews running in parallel, all in one place
Code Review Flow is an agentic AI capability that automatically reviews merge requests when they are opened. It runs a multi‑step review:
- Scans the changes.
- Explores relevant repository context.
- Generates a structured review with inline feedback.
The result is a review grounded in what’s actually happening in your project, not just the diff. Because it runs inside GitLab, you get organization‑wide consistency that standalone AI review tools can’t offer. Organizations can create custom merge‑review instructions so that reviews align with project standards. Different projects can use:
- The built‑in Code Review Flow.
- An external agent like Claude Code or Codex.
- A custom agent built around your team’s specific standards.
All reviews run simultaneously across every group, team, and project, each aligned to its own guardrails and visible in one place. This architecture differs from a 1:1 AI assistant in an IDE; GitLab enables hundreds of code reviews in parallel across the entire organization.
See GitLab Code Review in action with this demo:
Simple math, predictable spend
Flat‑rate pricing makes it straightforward to run reviews broadly, across every project and every merge request, without having to ration where you turn it on.
- Each Code Review Flow run costs 0.25 GitLab Credits (equivalent to $0.25 per review at list pricing).
- Every review costs the same, regardless of merge request size, repository complexity, or the number of internal steps.
The math: 4 reviews = 1 GitLab Credit. Whether your team merges 500 merge requests a month or 50,000, you can forecast spend directly in terms of reviews, with no token math or conversion required.
New to GitLab Credits? GitLab Credits are the unit of consumption for Duo Agent Platform usage. 1 Credit = $1. Learn more about how GitLab Credits work.
Scale your reviews, not your costs
Flat‑rate pricing isn’t just a billing simplification; it changes what’s possible for your team.
- Enable automatic review across all projects. Knowing the exact cost per review makes it a simple line item in your R&D budget. Set it to trigger on every MR and let the agent handle the queue.
- Compare on a level playing field. GitLab Duo Code Review Flow has a clear price‑per‑review, making it easy to evaluate alongside other AI review tools without unit conversion.
- See savings compound as you grow. A manual code review can take roughly 15 minutes of an engineer’s time, often valued around $25 per review. At $0.25 per automated review, the cost reduction is significant. Because hundreds of reviews can run simultaneously rather than waiting in a queue, time savings are equally substantial. The larger the organization, the more pronounced both advantages become.
Get started today
Flat‑rate pricing for Code Review Flow is available now on the GitLab Duo Agent Platform.
- Start a free trial of Duo Agent Platform to see it in action.
- If you are a GitLab customer, reach out to your account representative with any questions.