CodeBeavervsOpenReview
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
CodeBeaver
CodeBeaver · Code review agent
#256OSS
Panel
4.92 spec wins
- Reliability
- 4.7
- Usefulness
- 5.7
- Cost
- 5.5
- Longevity
- 3.7
“It writes the tests, runs the tests and explains the tests, leaving you only the job of trusting the tests.”
OpenReview
Vercel Labs · Code review agent
#226OSS
Panel
5.72 spec wins
- Reliability
- 5.8
- Usefulness
- 5.8
- Cost
- 6.2
- Longevity
- 5.0
“Review behaviour extends through skills in a .agents/skills directory, so your review bot now has a professional development plan.”
Spec by spec
| Spec | CodeBeaver | OpenReview |
|---|---|---|
| Architecture | ||
| Category | Code review agent | Code review agent |
| Runs | cloud, local | cloud, sandbox |
| Platforms | macos, linux, web | web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | YesEnd-to-end tests drive a local Chrome from natural-language steps in codebeaver.yaml. | No |
| Sandboxed execution | No | YesEach review runs in an isolated Vercel Sandbox that is torn down afterwards. |
| Multi-agent orchestration | No | No |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | OpenAI GPT | Claude Sonnet |
| Bring your own model | No | No |
| Local models | No | No |
| Cost | ||
| Pricing model | mixed | byok |
| Starts at | n/a | n/a |
| Free tier | Yes | No |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | unspecified |
| GitHub stars | 33 | 1,696 |
Which one would each critic pick
| Critic | CodeBeaver | OpenReview | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 5.5 | 5.8 | OpenReview — Pick this when you want a reviewer you summon rather than one that comments on everything; pick Ellipsis if you want it running on every pull request by default. |
| El Crítico | 5.0 | 5.3 | OpenReview — A pull-request comment starts a run with full repository access and push rights, so the trigger surface is everyone who can comment, not everyone who can merge. |
| El Profesor | 5.3 | 7.0 | OpenReview — The review executes linters, formatters and the test suite inside the environment rather than reasoning about them, which is the only honest form of verification here. |
| La Inversora | 4.0 | 5.3 | OpenReview — This is a labs release, not a product: no hosted tier, no price, and the commercial logic is that every review burns the parent's platform compute. |
| La Jefa | 4.3 | 5.3 | OpenReview — There is no seat price because there is no product: sixty developers costs whatever the sandbox compute and the model tokens come to, which is two meters and no cap. |
| El Hacker | 5.3 | 5.8 | OpenReview — The source is public and there is no licence declared, which means legally I have nothing, and the model is fixed to one vendor with no substitution. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.