Graphite
Stacked pull requests plus an AI reviewer, aimed at the fact that code review is where velocity dies.
Highlights
- AI code review and stacked-PR workflow platform for high-velocity engineering teams
- Founded in 2020 by Tomas Reimers, Greg Foster, and Merrill Lutsky (ex-Airbnb engineers)
- Approximately $80M+ raised across rounds; Sequoia and Anthropic invested
- Diamond is Graphite's AI code reviewer — comments on PRs with the rigor of a senior engineer
- Stacked PRs let engineers ship in small reviewable chunks instead of one giant PR
- Integrates natively with GitHub; popular with engineering teams that ship many small PRs daily
- Used by Vercel, Snowflake, Shopify, Notion, Asana, and many other modern engineering orgs
External link — opens graphite.com in a new tab. Graphite is a third-party product; we are not affiliated with it.
About Graphite
What it is
Graphite combines a stacked pull request workflow — breaking work into a chain of small dependent PRs rather than one large one — with Diamond, an AI reviewer that comments on changes before a human sees them. It has raised around $80M with backing including Sequoia and Anthropic.
Why it's different
The diagnosis is right: in most teams the largest source of delay is not writing code but waiting for review, and the reason reviews are slow is that pull requests are too big to review properly. Stacking attacks the cause rather than the symptom, and the tooling matters because managing dependent branches by hand in Git is genuinely painful. The AI reviewer catches the mechanical issues so human attention goes to design. Two caveats. Stacking is a workflow change the whole team has to adopt, and partial adoption gives you the overhead without the benefit. And an AI reviewer that comments on everything trains people to skim review comments, which is worse than having none.
How people use it
It suits teams shipping frequently where review latency is the measurable bottleneck, particularly those already frustrated by large PRs that sit for days. The habit that unlocks it is genuinely splitting work as you go rather than stacking retrospectively. Tune the AI reviewer's noise level early; the useful setting is one that speaks rarely and is right when it does.
Written by the n3os team. We are not affiliated with Graphite.
This listing was written from public information, without Graphite’s involvement. If you own it and something here is wrong — or you would rather not be listed at all — email us and we will correct or remove it.
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