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Code Review
Tenki vs Greptile: Review Depth, Noise, and Cost
Table of Contents
Ellipsis features, pricing, and how it compares to Tenki Code Reviewer.
Ellipsis (YC W24) provides AI code reviews and autonomous code generation on GitHub pull requests. Tenki takes a focused approach: best-in-class code review combined with the fastest, cheapest GitHub Actions runners on the market. This post breaks down how the two compare and why Tenki is the better choice for most engineering teams.
Feature Comparison
Feature | Ellipsis | Tenki | Tenki Advantage |
|---|---|---|---|
PR Review Coverage | Every commit on every PR, ~3 min turnaround | Every commit on every PR, plus ad-hoc reviews via | On-demand re-reviews without opening a new PR. Faster iteration loop for developers |
Issue Detection | Logical bugs, anti-patterns, security, spelling/grammar, doc drift | Logical bugs, anti-patterns, security issues, all severity-tagged | Severity tagging cuts noise so teams act on what matters instead of drowning in low-priority comments |
Fix Automation | Auto-commits fixes (with permission) or opens side-PRs | Comment-only; humans write the fix | Production code stays in human hands. No risk of AI pushing subtly broken commits to your main branch |
CI/CD Integration | Review-only | Code review + GitHub Actions runners on one platform | One vendor for review and build infra. Runners are 30% faster at 50% lower cost than GitHub-hosted |
Pricing (Reviewer) | $20/dev/month, unlimited usage | $20/seat/month annual ($25 monthly), unlimited repos and reviews | Same headline price, but Tenki unbundles runners so you pay only for the CI minutes you use instead of subsidizing features you don't need |
Total Cost of Ownership | $20/dev for review only; CI runners billed separately by GitHub or another provider | $20/seat for review + $0.015/min/core for runners at 50% below GitHub pricing | Combined review + runner spend is meaningfully lower with Tenki for any team running real CI volume |
Free Tier | Free for public repos; 7-day trial for private | 7-day free trial, unlimited reviews, no credit card | Frictionless trial. No payment details required to evaluate |
Custom Rules | Natural-language rules + thumbs up/down feedback loop | Dashboard-based custom context, severity thresholds, verbosity controls | Configure in the dashboard in minutes. No style guide files to maintain in-repo, no waiting on a feedback loop to converge |
Integrations | GitHub, Slack, Linear, API (enterprise) | GitHub-native via GitHub App | Zero-config setup. No YAML, no webhooks, reviews start on the next PR |
Self-Hosting | Not available | Available on Enterprise plan | Full control over where code is processed. Critical for regulated industries and security-conscious teams |
Enterprise Support | Not specified | Multi-org support, SLAs, dedicated Slack support | Real enterprise commitments, not just a contact form |
Setup | GitHub App install + integrations config | GitHub App install, reviews start on next PR | Single-step install |
Conclusion
Ellipsis tries to be everything at once: reviewer, code generator, codebase Q&A bot, weekly report generator. That breadth comes with tradeoffs. Each feature is shallower than a focused tool, the AI writes production code (a risk many teams aren't comfortable with), and the platform doesn't help with CI cost or speed at all.
Tenki wins on the dimensions that matter most for serious engineering teams:
- Better economics. Same $20/seat headline price, but Tenki's GitHub Actions runners replace your GitHub-hosted runners at 50% lower cost and 30% faster builds. For any team running real CI volume, the combined savings dwarf what Ellipsis offers.
- Safer by design. Tenki flags issues for humans to fix. No autonomous commits to your branches, no risk of AI shipping broken code while everyone's at lunch.
- Real enterprise readiness. Self-hosting, multi-org support, SLAs, and dedicated Slack support are available out of the box. Ellipsis offers none of these.
- Faster to value. One-click GitHub App install. Reviews start on the next PR. No webhooks, no YAML, no integration sprawl.
Ellipsis fits teams that want an AI generalist and don't mind paying for features they may not use. Tenki fits teams that want sharp code review and dramatically cheaper CI from a single vendor, with the safety guarantees and enterprise controls that production engineering organizations actually need.
Get Started Today
Tenki offers a 7-day free trial with unlimited reviews and no credit card required. Install the GitHub App and reviews begin on your next pull request.
Tags
#ai-pr-review#developer-tooling#ellipsis
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