String Matcher with LLM

Advanced text matching using GPT-4o-mini

OpenAI API Key

Checking API key status...
Shortcut: Ctrl+Enter

How to use

  1. Enter your OpenAI API key when prompted (required for LLM matching)
  2. Paste your expected list in the left text area (one item per line)
  3. Paste your actual list in the right text area (one item per line)
  4. Click "Match Lists with LLM" or press Ctrl+Enter
  5. Review the summary and matches in the results table

Result categories:

  • Match: Items that exist in both expected and actual lists (semantically similar)
  • Missing: Items that appear only in the expected list but not in actual
  • New: Items that appear only in the actual list but not in expected

By default, matching uses GPT-4o-mini to determine if an expected item semantically matches an actual item. For a simpler approach, check the "Use simple contains matching" option.

Press ESC to clear results.

Note: Using this tool will make API calls to OpenAI which may incur costs according to your OpenAI account billing.