AI pull request descriptions and refactoring for GitHub and GitLab
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, What the Diff (whatthediff.ai) is an AI platform indexed under AI Code Review generating 1.11K monthly visits with a month-over-month traffic delta of -1.65K (-59.8%). Its primary geographic market is United States (94.3% traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include Macroscope (106.17K visits/mo), CodeReviewBot.AI (2.52K visits/mo), CodeRabbit (1.05M visits/mo).
Saves our team hours of writing PR descriptions every week.
Free tier is way too small for active repositories.
Inline refactoring suggestions are surprisingly accurate.
Sometimes generates overly verbose changelogs.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Every PR gets a written summary of what changed in plain English, giving reviewers context without digging through the patch.
Simplified, translated summaries go out via Slack, email, or webhooks to keep non-technical teammates in the loop.
Request improvements directly in a pull request comment and let the AI help draft the refactoring.
Aggregate a week of work into a single clear update so nobody has to chase progress manually.
Publish a public record of what is new, or pull the changelog into your own tools through a JSON API.
What the Diff plugs into GitHub or GitLab and works where developers already are. When you open a pull request, it reads the diff through the provider API and generates a descriptive comment explaining what changed, why it likely changed, and what reviewers should pay attention to. The result is a first draft of PR context that a reviewer would otherwise have to reconstruct by reading the patch.
Beyond PR descriptions, the product covers summary notifications pushed to Slack, email, or webhooks so non-technical teammates stay informed, weekly reports that aggregate a team's progress, inline refactoring where you can request improvements in a comment and let the AI draft the change, and public changelogs that can be published or pulled into other tools through a JSON API. Granular controls let you choose repositories, skip CI pull requests, delay drafts, and manage token usage.
What the Diff is built by Beyond Code and follows a token-based usage model: each diff consumes tokens, with an average pull request costing roughly 2,300 tokens. The company states that it does not store your code, that third-party services do not store it either, and that your code is never used to train models. Unused tokens do not roll over between billing cycles.
Open a pull request as usual and get a clear description of the change without writing it yourself.
Give reviewers the context they need up front so reviews start with understanding instead of guesswork.
Receive translated, simplified summaries of merged work through Slack, email, or webhooks.
Use aggregated weekly reports to show stakeholders what the team delivered without extra status meetings.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | What the Diff | 1.11K | -59.8% | 39% direct | Freemium | Current |
| 1 | Macroscope | 106.17K | +39.6% | 44% direct | Free Trial, Paid, Contact for Pricing | vs Macroscope |
| 2 | CodeReviewBot.AI | 2.52K | +97.1% | 40% direct | Freemium, Free Trial, Paid, Contact for Pricing | vs CodeReviewBot.AI |
| 3 | CodeRabbit | 1.05M | +4.6% | 32% direct | Freemium, Free Trial, Paid, Contact for Pricing | vs CodeRabbit |
| 4 | Cursor | 4.79M | +6.5% | 9% direct | Freemium | vs Cursor |
| 5 | GitLoop | 9.5K | -22.9% | 40% direct | Freemium | vs GitLoop |
| 6 | Squire AI | 687 | -58.6% | 39% direct | Paid, Contact for Pricing | vs Squire AI |
AI code review and status updates that keep every repo on track
AI code review and status updates that keep every repo on track
Automated AI code review for every GitHub pull request
Automated AI code review for every GitHub pull request
AI code review, PR triage, and security monitoring for fast-moving teams
AI code review, PR triage, and security monitoring for fast-moving teams
The AI coding agent that turns ideas into shipped software
Context-aware AI assistant that knows your entire Git codebase
Context-aware AI assistant that knows your entire Git codebase
Agentic code review that writes PR descriptions and reviews pull requests
Agentic code review that writes PR descriptions and reviews pull requests
The coding agent that learns your coding taste
The coding agent that learns your coding taste
Sovereign AI pair programmer that keeps your code on your infrastructure
Sovereign AI pair programmer that keeps your code on your infrastructure
Context-aware AI code reviews and a model router for coding agents
Context-aware AI code reviews and a model router for coding agents
All-in-one AppSec platform that finds and auto-fixes vulnerabilities
All-in-one AppSec platform that finds and auto-fixes vulnerabilities
Free / Open-sourceOpen-source AI code review you can self-host or run in the cloud with your own model keys
Free / Open-sourceOpen-source AI code review you can self-host or run in the cloud with your own model keys
Cognition's autonomous software engineer that ships real pull requests
