Make ChatGPT Find the Cheapest Price, Then Test the Coupon Codes For You
This is the exact two-prompt chain from the video. A backpack that was $200 on the brand's own site came down to $124.16. The first prompt finds the cheapest listing on the internet. The second one makes ChatGPT find coupon codes and test them itself, so you never have to touch a coupon site.
What you need
ChatGPT with web search. Prompt 1 runs in a normal chat.
Work mode for prompt 2. Work is the mode with its own agent browser. It can open a store, add the item to the cart and try codes at checkout. It comes with the paid ChatGPT plans, so if you already pay for ChatGPT you have it.
The product page of the exact thing you want. Not a search result. The actual page, with the model in the URL.
Step 1: Copy the product link
Go to the product page for the exact item. Brand site, Amazon, wherever you found it. Copy the URL from the address bar.
The link matters more than you'd think. It carries the exact model, so ChatGPT matches the same product instead of a lookalike in a different size or color.
Prompt 1: Find every listing
Open a new chat, paste this, and drop your link where the brackets are.
Search the web for every listing you can find for this item: [paste the product link]. Return a table with a link to each listing and its price.What comes back
ChatGPT searches the stores and marketplaces that carry it, then hands you one table with a link and a price for each.
Boom. In the video the cheapest was $137.95 at a luggage retailer, about $62 under the brand's own price.
Read the notes before you get excited. Listings marked not verifiable, ended, or only showing a price in a search index don't count. ChatGPT flags those for you, so trust the ones with a live link and a real price.
Step 2: Branch the chat into Work mode
Now scroll to the bottom of ChatGPT's answer and click the three dots under it. Hit Open new branch, then Branch into Work mode.
The branch keeps the whole table, so Work mode already knows which stores to check. Your original chat stays untouched.
Prompt 2: Find the codes and test them
Paste this into the Work branch. The last line is mine. It stops the agent at checkout so it never goes near your card.
Now find coupon codes for the appropriate sites, then use your agentic browser to test them until you have found the absolute cheapest price. Stop at checkout before any payment and tell me the store, the code, and the final total.What Work mode does
It finds codes for the cheapest stores on the list, opens them in its own browser, adds the item to the cart and tries the codes one by one.
A lot of the codes floating around online are expired or exclude the item you want. Testing them is the part nobody has patience for, and it's exactly the part you hand off here.
Boom, in the video it found a code for an extra 10% off that took the $137.95 listing down to $124.16.
Step 3: Check out yourself
Open the store it picked, add the same item and paste the code at checkout. Make sure the total matches what ChatGPT told you before you pay.
Take one last look at the listing too. Same model, same color, sold new, by a store you'd actually trust. If a price looks way too low on a site you've never heard of, skip it.
Only use codes you actually qualify for. A student or first-order code on the wrong account can get the whole order cancelled.
The one-message version
If you start in Work mode, this does both steps in one message. Save it in your notes for the next thing you buy.
Search the web for every listing you can find for this item: [paste the product link]. Put them in a table with a link to each listing and its price. Then find coupon codes for the cheapest sites and use your agentic browser to test them until you have found the absolute cheapest price. Stop at checkout before any payment and tell me the store, the code, and the final total.Where it works best
Anything with a model number that more than one store sells. Luggage, sneakers, headphones, appliances, electronics. That's where prices spread out the most, so there's the most to find.
It's weaker on things only one shop sells, or anything already on a big sale, since most codes exclude sale items.
Prices move every day. Run it again the day you actually buy, not a week before.
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Frequently asked questions
Prompt 1 runs in a normal ChatGPT chat with web search. Prompt 2 needs Work mode, which comes with the paid ChatGPT plans. On the free plan, prompt 1 still finds you the cheapest listing, you just test the codes yourself.
No. The prompt tells it to stop at checkout before any payment. It tells you which code worked and the final total, then you check out yourself. Don't give an agent your card details for this, it doesn't need them.
Then the cheapest listing from prompt 1 is still your win. In the video that step alone took about $62 off before any code. ChatGPT may also offer a price-drop alert at the end of the table. Say yes if you're not in a rush.
Yes. Codes that stores post publicly are meant to be used. Stick to the ones you qualify for, like a first-order code on an actual first order. And if a purchase still goes wrong, the refund prompt writes the message that gets your money back.
Branded products with a model number that several stores carry, like luggage, sneakers, headphones and electronics. The more stores sell the exact same item, the more room there is to find a lower price.