AsyncReviewvsProval
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
AsyncReview
AsyncFunc AI · Code review agent
#234OSS
Panel
5.92 spec wins
- Reliability
- 5.5
- Usefulness
- 5.8
- Cost
- 7.8
- Longevity
- 4.3
“It reviews issues as well as pull requests, so it can now explain that your bug report was also wrong.”
Proval
seoes · Code review agent
#211OSS
Panel
5.93 spec wins
- Reliability
- 5.7
- Usefulness
- 5.7
- Cost
- 7.3
- Longevity
- 5.0
“It can be configured to reply only when mentioned, a courtesy no human reviewer has ever extended to anyone.”
Spec by spec
| Spec | AsyncReview | Proval |
|---|---|---|
| Architecture | ||
| Category | Code review agent | Code review agent |
| Runs | local, sandbox | local, cloud |
| Platforms | macos, linux, windows | linux, web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | YesThe agent writes and runs Python inside a REPL sandbox to verify findings, rather than executing shell commands in your repository. | No |
| Multi-file edits | No | No |
| Git operations | YesIt reads pull requests and issues through the GitHub API; the README documents no commit or branch operations. | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | Gemini | OpenAI-compatible, Ollama, llama.cpp |
| Bring your own model | NoGEMINI_API_KEY is the documented credential; no other provider is named. | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | byok | byok |
| Starts at | $0/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | AGPL-3.0 |
| GitHub stars | 459 | 102 |
Which one would each critic pick
| Critic | AsyncReview | Proval | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.0 | 6.3 | Proval — Pick it if your reviewers are the bottleneck and you want a first pass before a human looks; pick nothing if your problem was never the queue. |
| El Crítico | 5.8 | 4.8 | AsyncReview — It generates Python and executes it, and the only thing separating that code from the rest of the machine is an interceptor inside the same interpreter. |
| El Profesor | 6.5 | 6.0 | AsyncReview — The loop plans, emits code, executes it, observes and repeats, which grounds every finding in a value the agent actually retrieved rather than one it recalled. |
| La Inversora | 5.3 | 4.5 | AsyncReview — 459 stars, a permissive licence and no commercial layer at all, in a category where several funded competitors are spending real money on distribution. |
| La Jefa | 5.5 | 6.3 | Proval — One container image against our own Git host, which is the shortest path to production on this board, and there is still no console and no audit export. |
| El Hacker | 6.3 | 7.8 | Proval — AGPL-3.0 and it takes any compatible endpoint, including Ollama and llama.cpp, so the one tool that reads all my code never has to phone anyone. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.