Graphite Agent (formerly Diamond)vsSourcery
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
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.”
Sourcery
Sourcery · Code review agent
#78
Panel
6.02 spec wins
- Reliability
- 5.8
- Usefulness
- 5.8
- Cost
- 6.3
- Longevity
- 6.2
“Draws a diagram of your code changes, which is more attention than the changes usually get.”
Spec by spec
| Spec | Graphite Agent (formerly Diamond) | Sourcery |
|---|---|---|
| Architecture | ||
| Category | Code review agent | Code review agent |
| Runs | cloud | cloud |
| Platforms | web | web, macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | No | No |
| Multi-file edits | No | No |
| Git operations | Yes | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | No | No |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | Anthropic, OpenAI | OpenAI, Anthropic, Azure OpenAI |
| Bring your own model | No | Yes |
| Local models | No | No |
| Cost | ||
| Pricing model | seat | seat |
| Starts at | $20/mo | $12/mo |
| Free tier | Yes | Yes |
| Bring your own key | No | No |
| Openness | ||
| Open source | No | No |
| License | proprietary | proprietary |
| GitHub stars | n/a | n/a |
Which one would each critic pick
| Critic | Graphite Agent (formerly Diamond) | Sourcery | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.5 | 7.0 | Sourcery — Pick Sourcery if you want the same reviewer on uncommitted changes in your editor and on the pull request; pick CodeRabbit if you only need the bot on the PR. |
| El Crítico | 6.3 | 6.5 | Sourcery — The status check that can block a merge exists on GitHub only, so the same review is a gate on one host and a comment on the other. |
| El Profesor | 5.5 | 6.0 | Sourcery — Sourcery publishes no benchmark and documents a four-part output: summary, a file-by-file reviewer guide with verification steps, inline fixes, and a status check. |
| La Inversora | 7.3 | 6.5 | 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 | 6.0 | 6.3 | Sourcery — Sixty Team seats is $1,440 a month, GitHub Enterprise Server and self-hosted GitLab are covered, and the pricing page says nothing about SSO, SCIM or audit logs. |
| El Hacker | 3.0 | 4.0 | Sourcery — Closed and cloud-only, no MCP either way, no local models, but Team lets me bring my own LLM including Azure OpenAI, which is more than most review bots allow. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.