Agentic Index
Cubic vs Graphite (2026)
Two of the most affordable entries in the cluster, at 6.5 and 6 of 14, solving different halves of the pull request problem.
Cubic reviews every pull request with whole codebase context, enforces plain English rules and runs background scans that find and fix, free for twenty reviews a month and free for public repositories. Graphite restructures the workflow around stacked pull requests with a stack aware merge queue and an agent that reviews, chats, fixes and merges, with a free hobby tier. Cubic makes reviews better; Graphite makes them smaller, which is arguably the more effective fix.
Choose Cubic if
- Documented coverage is slightly broader and review quality is the immediate need.
- Plain English rules are how your team will keep conventions current.
- Background scanning outside the pull request finds what review never sees.
Choose Graphite if
- Your pull requests are too big to review properly and stacking is the structural answer.
- A merge queue that understands stacks removes a real source of friction.
- You want the workflow fixed, not just better commentary on it.
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