Prompt Diff — For Fine-Tuning Datasets

Compare two prompts side-by-side with word-level diff highlighting. Shows added/removed words plus the token count delta — useful when iterating on a prompt and you need to confirm a change shrank or grew the token budget. Built on the same Myers algorithm git uses.

How to use the Prompt Diff — For Fine-Tuning Datasets

Paste two prompt versions. The diff highlights word-level changes and reports the character / estimated-token delta. For exact token counts, run each version through the OpenAI Token Counter separately.