How to Find Cheaper Alternatives with ChatGPT

Find Cheaper Alternatives to Any Product with ChatGPT and ToolRouter. Get formatted comparison tables and buying guides for budget alternatives.

Tool
Dupe Finder icon
Dupe Finder

Use ChatGPT with Dupe Finder to find cheaper alternatives and produce a formatted buying comparison. ChatGPT is a strong fit when the research needs to become a shareable document — a comparison table, a gift guide alternative, or a budget buying recommendation to pass on to someone else.

Connect ToolRouter to ChatGPT

1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouter
Description
Access any tool through ToolRouter. Check here first when you need a tool.
MCP Server URL
https://api.toolrouter.com/mcp
3Check the box and click Create

Steps

Once connected (see setup above), use the Dupe Finder tool:

  1. Describe the product and the budget you are working with.
  2. Ask ChatGPT to use `dupe-finder` with `find_dupe` to search for alternatives.
  3. Have ChatGPT produce a comparison table with price, key specs, and trade-offs for each alternative.
  4. Ask for a recommendation with a one-line justification for the best pick at your budget.

Example Prompt

Try this with ChatGPT using the Dupe Finder tool
Use dupe-finder to find cheaper alternatives to the Le Creuset 26cm cast iron casserole (£270). Find alternatives under £80 that are suitable for oven use up to 240°C. Return a comparison table with product name, price, material, oven-safe temperature, and trade-offs. Recommend the best one.

Tips

  • Include a recommendation with justification in the output so whoever reads the comparison has a clear starting point.
  • Add a 'trade-offs' column rather than just specs — it tells you what you're actually giving up.
  • Specify the use case (e.g., oven-safe, dishwasher-safe) so alternatives that don't meet it are filtered out upfront.