Ellipsis
AI code review bot installed in 67,000+ GitHub repositories. Automatically reviews every PR commit for logical bugs and antipatterns. Async code generation via GitHub comments. $20/developer/month.
Ellipsis: A Windsurf Alternative for Automated AI Code Reviews and Bug Fixes
Ellipsis is an AI code review and bug fixing tool developed by Ellipsis AI Inc. (YC W24). It installs directly into GitHub repositories and automatically reviews every pull request commit, catching logical bugs, style guide violations, and antipatterns. As a Windsurf alternative, it is best suited for teams that prioritize automated code quality enforcement at the PR stage rather than an integrated AI IDE experience.
Ellipsis vs. Windsurf: Quick Comparison
| Ellipsis | Windsurf | |
|---|---|---|
| Type | IDE extension / GitHub bot (code review) | AI IDE |
| IDEs | GitHub (any editor), CLI, IDE plugin available | Standalone / editor-centric workflow |
| Pricing | Free for public repos; $20/developer/month for private repos | Not publicly documented |
| Models | Not publicly documented | Cascade + others |
| Privacy / hosting | Cloud (AWS VPC); no code retention post-review; SOC 2 Type 1 | Cloud |
| Open source | No | No |
Key Strengths
- Automated PR reviews with real bug detection: Ellipsis reviews every commit of every pull request automatically, catching logical mistakes and antipatterns — not just style issues. Installed in 67,000+ GitHub repositories.
- Async code generation: Tag @ellipsis-dev in a GitHub comment with a task and it will generate working, tested code and open a side PR. This enables async agentic coding directly from GitHub without switching to a separate IDE.
- Transparent pricing at $20/dev/month: Unlike many enterprise AI tools, Ellipsis has a flat per-developer pricing model with unlimited usage across all repositories. Free for public GitHub repos.
Known Limitations
- GitHub-first workflow: Ellipsis is primarily a GitHub integration. While an IDE plugin is available, its core value is at the PR review stage rather than inside an editor during active coding.
- Not a coding IDE: Ellipsis does not provide inline autocomplete, multi-file agentic sessions, or the kind of interactive coding assistance Windsurf offers through Cascade.
Best For
Ellipsis is best for development teams using GitHub who want automated code review on every PR without adding manual review burden. It works alongside any existing IDE or editor — including Windsurf — as a complementary code quality layer. It is particularly valuable for teams that ship frequently and need consistent enforcement of coding standards without reviewer fatigue.
Pricing
- Free: Public GitHub repositories — unlimited usage.
- Pro: $20/developer/month — unlimited code reviews, PR summaries, code generation, Q&A across all private repositories.
- 7-day free trial available for private repos.
Prices are subject to change. Check the official pricing page for current details.
Tech Details
- Type: IDE extension / GitHub bot (code review and code generation)
- IDEs: GitHub integration (any editor), IDE plugin available
- Key features: Automated PR code review, async code generation via GitHub comments, PR summaries, style guide enforcement, changelog generation, Q&A in GitHub issues
- Privacy / hosting: Cloud (private AWS VPC); no source code persisted post-review; SOC 2 Type 1 certified
- Models / context window: Not publicly documented
When to Choose This Over Windsurf
- You want automated code review on every PR with real bug detection, without adding a new IDE to your workflow.
- You need a transparent, flat per-developer pricing model with unlimited usage ($20/dev/month).
- You prefer a GitHub-native async coding tool that integrates with your existing editor rather than replacing it.
When Windsurf May Be a Better Fit
- You want an integrated IDE with real-time inline suggestions and multi-file agentic coding — Ellipsis focuses on post-commit PR reviews.
- You need an AI tool that helps you write code faster during development, not just review it afterward.
- You work in GitLab, Bitbucket, or Azure DevOps — Ellipsis is GitHub-focused.
Conclusion
Ellipsis is the right choice if your team ships frequently via GitHub PRs and wants automated AI code review that catches real logical bugs, not just surface-level style issues. At $20/dev/month with unlimited usage, it pairs well with any AI IDE including Windsurf as a complementary code quality enforcement layer.
Sources
FAQ
Is Ellipsis free?
Yes, for public GitHub repositories. For private repositories, Ellipsis costs $20/developer/month with a 7-day free trial.
Does Ellipsis work with VS Code?
Ellipsis is primarily a GitHub integration that works with any editor. An IDE plugin is available. Its core functionality — automated PR reviews and async code generation via GitHub comments — does not require VS Code or any specific editor.
How does Ellipsis compare to Windsurf?
Windsurf is an AI IDE providing real-time coding assistance. Ellipsis is a GitHub bot that reviews pull requests and generates code asynchronously from GitHub comments. They address different points in the development workflow — Windsurf assists during active coding, Ellipsis enforces quality at the PR review stage. Many teams use both.
Is Ellipsis safe to use with my codebase?
Ellipsis is SOC 2 Type 1 certified. Your source code is processed in a private AWS VPC and is not retained after each review job. Ellipsis will never commit code to your repository without your explicit permission.
