Maintain AI optional
Training Diff: Compare two versions of a training document
Paste or upload two versions of any training text and see exactly what changed, word by word, with a plain-English change summary and a reviewer checklist.
- You bring
- Two versions of a script, document or course text
- You leave with
- A side-by-side and inline diff, change statistics and an optional AI change summary
When to use Training Diff
Reviewers lose hours hunting for what changed between version 3 and version 4 of a script. Training Diff shows every change word by word, side by side or inline, with change statistics and a reviewer checklist.
The comparison runs in your browser. An optional AI summary describes the changes in plain English when you need to brief someone.
How to use it
- Paste or upload the old version and the new version.
- Switch between the side-by-side and inline views.
- Use the statistics and checklist to plan the review.
- Optionally generate a plain-English change summary to share.
Questions about Training Diff
- Is my text uploaded to compare it?
- No. The comparison runs entirely in your browser. Only the optional AI change summary sends text to the server, and only when you ask for it.
- What do I get besides the diff?
- Change statistics, a side-by-side and an inline view, and a reviewer checklist. The plain-English change summary is an optional AI extra.
- Is Training Diff free?
- Yes. The core of Training Diff runs in your browser with no account and no limits. The optional AI extra uses one of your free AI runs: 3 without an account, 40 a month with a free account.
- What happens to the content I paste?
- It is sent to our server and on to Anthropic's Claude API only when you press the run button. It is not written to our database unless you press Save, and it is never used to train a model.


