What The Diff

Writes PR descriptions from the diff, sends changelog notifications to stakeholders, and does small /wtd refactors on GitHub and GitLab.

[ Facts ]

Category: AI PR Review
Open source: No
Pricing: Free: 25,000 tokens/mo (~10 PRs); Pro $19/mo: 200,000 tokens (~40 PRs). Token-metered (avg PR ~2,300 tokens); no rollover source
Self-hosted: No
Platforms: github, gitlab
Model control: Fixed vendor model; no BYOK or model choice documented
Last verified: 2026-08-11

Based on public documentation as of 2026-08-11. ✓ documented · ~ partial · ✗ not offered · ? unknown. Methodology on the about page.

Explicitly diff-only: analyzes the PR diff to write a description; not a bug-finding reviewer.

No custom rules or noise controls documented.

PR surface only; no IDE, CLI, or pre-commit mode.

No issue tracker integration documented.

No learning from developer feedback documented.

No code execution or test running documented.

No BYOK, but usage is metered in visible tokens with published per-PR averages (~2,300 tokens/PR).

On-demand /wtd comments produce small refactor suggestions in the PR; no review-driven fixes.

Weekly progress report notifications only; no acceptance, DORA, or cost dashboards.

Evaluating What The Diff?

Run it through the two-week trial protocol before you commit.