GitarvsGraphite Agent (formerly Diamond)
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Gitar
Sonar · Code review agent
#67
Panel
6.13 spec wins
- Reliability
- 5.8
- Usefulness
- 6.7
- Cost
- 5.8
- Longevity
- 6.0
“Free for OSI-licensed public repositories, so it will fix your side project and invoice your employer.”
Graphite Agent (formerly Diamond)
Graphite · Code review agent
#119
Panel
5.80 spec wins
- Reliability
- 5.5
- Usefulness
- 5.5
- Cost
- 5.5
- Longevity
- 6.5
“Launched as Diamond in March and retired the name by October, a shorter lifespan than some of the pull requests it reviewed.”
Spec by spec
| Spec | Gitar | Graphite Agent (formerly Diamond) |
|---|---|---|
| Architecture | ||
| Category | Code review agent | Code review agent |
| Runs | cloud | cloud |
| Platforms | web | web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | No | No |
| Multi-file edits | Yes | No |
| Git operations | YesGitar commits fixes to the branch and can auto-approve or block merges on the Pro tier. | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | No | No |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | undisclosed | Anthropic, OpenAI |
| Bring your own model | Yes"Bring Your Own LLM API Key" is listed as an Enterprise-tier feature only. | No |
| Local models | No | No |
| Cost | ||
| Pricing model | seat | seat |
| Starts at | $20/mo | $20/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | No |
| Openness | ||
| Open source | No | No |
| License | proprietary | proprietary |
| GitHub stars | n/a | n/a |
Which one would each critic pick
| Critic | Gitar | Graphite Agent (formerly Diamond) | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.8 | 6.5 | Gitar — Pick Gitar if your reviewers are drowning and you want a bot that argues back in the thread; pick CodeRabbit if you only want the comments. |
| El Crítico | 5.8 | 6.3 | Graphite Agent (formerly Diamond) — The agent reviews, fixes and updates pull requests with no sandbox in the product, so a reviewer that writes code has nowhere isolated to write it. |
| El Profesor | 6.5 | 5.5 | Gitar — Verification is delegated to the pipeline rather than asserted, which is the correct design, though nothing is published about how the loop terminates. |
| La Inversora | 7.0 | 7.3 | Graphite Agent (formerly Diamond) — Graphite's asset is the stacking workflow and merge queue; AI review is a retention feature priced into a seat it already sells, which is where the pricing power lives. |
| La Jefa | 6.5 | 6.0 | Gitar — Core is $20 and Pro $40 per user per month, so sixty engineers is $1,200 or $2,400 before anything else, and self-hosted code hosting is Enterprise only. |
| El Hacker | 4.0 | 3.0 | Gitar — Proprietary, cloud-only, and the bring-your-own-LLM-key line is an Enterprise feature, so the one knob I care about is behind a sales call. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.