AI has fundamentally changed how we write code—one developer can now generate in minutes what used to take an entire team days to produce. The acceleration of software over the past year has been wildly impressive, but the rest of the development lifecycle is struggling to keep up with the flood of new code. Writing the code is no longer the bottleneck—today’s developers need tools that let them review and ship as quickly as AI now enables them to create.
Graphite is building those tools. We started with Diamond, an AI code review agent that provides immediate suggestions and fixes on every pull request. Diamond has reviewed millions of PRs across thousands of customers, including massive teams like Snowflake, Duolingo, and Ramp. But simply adding AI comments to every PR feels somewhat like GitHub Copilot tab complete did in 2023: an exciting glimpse of the future, but fundamentally limited and static. Cursor changed everything by making your IDE feel like a true collaborator. Today, Graphite does the same for the pull request.
We’re excited to announce our newest feature: Graphite Chat.
Developers can now chat with Graphite directly in their pull requests to understand code changes, ask for improvements, get suggested fixes, and apply them instantly. You’ll never have to switch tabs or hunt for context again; you can just ask, fix, and commit all in one place. This is code review, in conversation.
What you’ll get with Graphite Chat
Graphite Chat is now live in beta and free during this period for all Graphite users. With Graphite chat, you can:
Understand the diff without digging. Highlight any lines, ask a question, and Chat will respond based on the full codebase and linked PR history. It knows the code you’ve already reviewed.
Get instant, customized suggestions. Need a test? A refactor? Pattern mismatch? Chat understands your code style based on existing code and can offer customized fixes.
Make changes in seconds—not minutes. Use the Chat-powered IDE to review suggested changes in context. You can add lines, run tests, and commit changes–no local checkout required.
Merge when ready. Once you’ve incorporated edits into your PR, you can merge those changes without ever having to leave the same window.
Same tool, two ways to win
Graphite Chat is designed for both sides of the pull request, whether you’re the author or a reviewer. When you’re reviewing code, Graphite Chat gives you all of the context you need, when you need it. You can highlight unfamiliar logic and ask what it does. Or, you can ask if a PR follows your team’s patterns, whether it has test coverage, or if it introduces regressions. Conversely, when you create a PR, you don’t have to wait for a teammate’s review: Graphite Chat can proactively identify improvements, suggest refactors, and help fix test failures or linting issues. No matter the question, Chat gives you grounded answers from the codebase, your CI pipeline, and even the web, all without needing to leave the PR. What used to take a dozen comments and multiple context switches now takes a minute of conversation with Graphite.
Whether you’re reviewing or authoring, Graphite Chat easily slots into your workflow:
For reviewers
Ask questions like “What does this new helper do?” or “Could this cause a race condition?”
Chat calls attention to security concerns, outdated APIs, or test coverage issues.
When fixes are ready, apply them from Chat and hit “Merge,” all without switching context.
For authors
Instead of waiting for human feedback, ask “What can I improve?” or “Why is CI failing?”
Chat can resolve reviewer comments (and even fix CI) with one click.
Preview edits, commit, and merge, all in place so you can ship faster and cleaner.
Code smarter, ship faster, start chatting
Graphite users can access Chat completely for free with unlimited responses during the beta. Just open Graphite, open any pull request, click “Ask Graphite,” and chat your way from comment to commit. Or you can use the keyboard shortcut `command + ;` to open the Chat window. Welcome to the new standard for AI code review–we can’t wait for you to join the conversation!
