Greptile is one of the best-known pure AI-code-review players — over 9,000 teams according to its own site, including customers like Nvidia, Brex, Klaviyo, Retool, PostHog, and Zapier. It's a serious tool, and if you're evaluating code review platforms, it's probably already on your list. This post isn't "Greptile is bad" — it's a straight comparison of what each product is actually built to catch, sourced against what each vendor publishes publicly, so you can tell which gap matters for your team.
What Greptile does well
Greptile builds a full graph index of your repository and reviews each pull request with what it describes as a "swarm of agents" — multiple review passes reasoning over the codebase's structure, not just the diff in front of them. It recently launched TREX, an early-access feature for autonomous test writing and execution per PR. For teams that want deep, whole-repo context on every review and are comfortable with the cost of indexing a full codebase, that's a real capability.
Where the two products diverge
The difference isn't "better" or "worse" review quality — it's what each tool remembers between reviews.
| Capability | Greptile | Bugweg |
|---|---|---|
| Full-repo graph index | Yes | No — diff-only by design (see below) |
| Static analysis / SAST | Not offered | Secrets detection + behavioral contract checks, not general SAST |
| Remembers a bug across PRs (genealogy) | Not offered | Yes — the core feature |
| Per-file predictive risk score | Not offered | Yes, updated on every reviewed PR, with a 30-day time decay |
| Per-developer pattern profile | Not offered | Yes, opt-in ("Developer Bug DNA") |
| Auto-generated regression test from a resolved production incident | Not offered | Yes ("Production Lock," via Sentry or Rollbar webhooks) |
| Entry price | Free (50 credits/mo) / $30 per seat/mo Pro | 3-review free trial / $10 CAD per seat/mo Developer ($8 CAD billed annually; one developer) / teams: Team $25 CAD per seat/mo, minimum 2 seats (what each plan covers) |
The trade-off, honestly stated
Greptile's graph index means it can answer questions about how your whole codebase fits together — that's a genuinely useful capability bugweg doesn't try to replicate. Bugweg's diff-only design is a deliberate trade: we only ever hold the changed lines of a PR in memory, and never persist a copy of your source. That's a narrower scope than a full graph index, and it's also why a breach of bugweg's database would expose bug-pattern fingerprints, not your source code (see our Security page). Which trade-off is right for your team depends on whether whole-repo Q&A or bug-recurrence tracking is the bigger gap in your current process.
What we didn't find in other reviewers
In our June 2026 review of the public materials of Greptile, CodeRabbit, DeepSource and SonarQube, we found none that tracks whether a flagged bug has been fixed before in the same repo, or scores files by forward-looking risk. On the production side, Sentry's Seer can generate fixes and unit tests, but we did not find a product that turns a resolved production incident into a regression test verified to fail on the broken commit and pass on the fix, then opens a pull request. That is a statement about what we found in each vendor's public materials on the dates cited, not about what any product may do internally.
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