I kept seeing people say “Claude Code review” and mean completely different things, so I went through the docs. There are three separate options now, and they cost very different amounts. 1. /code-review in your terminal Works on any plan that has Claude Code Reviews your branch’s commits ahead of upstream plus uncommitted changes, or a target you pass (file, PR number, branch, main…my-feature ) Reports correctness bugs plus reuse, simplification and efficiency cleanups –fix applies the findings, –comment posts them as inline comments on a GitHub PR (or one note on a GitLab MR) Uses your normal plan usage. Only runs when you remember to run it 2. Code Review (the managed PR reviewer) Research preview, Team and Enterprise only, not available with Zero Data Retention An owner installs the Claude GitHub App and sets a trigger per repo: once when a PR opens, every push, or manual @claude review runs one review, @claude review always subscribes the PR to future pushes Multiple agents review in parallel, then a verification step filters false positives Findings are tagged Important / Nit / Pre-existing and it never approves or blocks Tune it with CLAUDE.md or REVIEW.md About 20 minutes per review on average Billed as usage credits, averaging $15 to $25 per review , outside your plan’s included usage. There’s a monthly spend cap Also /code-review ultra : a bigger fleet of reviewers in a cloud sandbox that reproduces each finding before reporting it. Research preview, needs a claude.ai login. 3. The GitHub Action ( claude-code-action ) You write the workflow yourself @claude in a PR or issue comment can analyze, implement changes and push commits Can also run a prompt on any GitHub event The part that surprised me was the cost A team of 5 merging around 60 PRs a month: Managed Code Review once per PR: roughly $900 to $1,500/month in credits (more if set to every push) A seat-priced reviewer like CodeRabbit Essentials: 5 x $24 = ~$120/month billed annually So the managed reviewer makes the most sense on Manual mode, pointed at the risky PRs, with something cheaper or /code-review covering the rest. I put the full Claude Code vs CodeRabbit comparison (git hosts, config, pricing tiers) here if it helps anyone decide. Anyone using the managed reviewer on every push? submitted by /u/notomarsol
Originally posted by u/notomarsol on r/ClaudeCode