Someone was two clicks from buying something with a big red “50% OFF” banner slapped across it, and something felt off. Not the price. The vibe. The kind of gut check you get right before you hit purchase on a Tuesday night, half paying attention, half just wanting the tab closed. So before hitting purchase, they asked ChatGPT to check if the discount was actually real.
It wasn’t. Same price for six weeks straight. Someone had just stuck a fake “was” price next to it and called it a sale. Not a glitch, not a one-off. A pattern dressed up as urgency.
That’s the story u/Professional-Rest138 shared on r/ChatGPTPromptGenius, and it’s the kind of thing that should make you side-eye every “limited time” banner you scroll past from now on.
🎯 Why It Matters
Retailers inflate “original” prices constantly, and not in some sneaky back-alley way, it’s baked into how a lot of ecommerce pricing works now. The strikethrough number was sometimes never the real price, just a number invented to make the current price look like a deal. A sweater that’s “usually $80, now $40” might have quietly launched at $45 and never moved much since. You’d never know that from the product page. You’d only know it from price history, which most people never think to check because who has time to dig through that on every purchase.
ChatGPT with web search turned on can dig through price history and tell you the truth in about 30 seconds, for free, no paid plan required. That’s the part that makes this worth doing. It’s not a hack that needs a subscription or a browser extension you have to remember to install. You open a chat you already have, paste a link, and get an honest answer.
The poster ran this on a batch of “deals” and found half of them were either fake markdowns or prices that dip to the same level every few weeks anyway. Translation: the “sale” was just Tuesday. Some items cycle through the same discount every three or four weeks like clockwork, so the “flash sale” language is really just describing a Wednesday that happens on a schedule. Once you see one item do this, you start noticing it everywhere, especially with fast fashion and electronics accessories.
🛠️ How-To Steps
- Turn on web search in ChatGPT. Regular chat, no subscription needed. It’s usually just a toggle or tool option in the chat window, and once it’s on, it stays on for that conversation.
- Paste the product link and ask:
“I’m looking at buying this: [product link]. It’s listed as on sale / discounted. Use web search to check if this is actually a good price right now. Has it been the same price or cheaper recently? Is this a real discount or an inflated ‘was’ price? What’s this item typically sold for, and is there a predictable time it usually goes cheaper (sale events, new model releases, time of year)?”
Give it a second to actually search instead of guessing from memory. You’ll usually see it cite where it pulled price data from, which is your cue that it’s not just making something up to sound helpful.
- If the discount checks out, push further in the same chat:
“Is this exact item sold cheaper right now at another legit retailer? And does the store I’m buying from price-match, if so how do I actually request that?”
This one alone has saved people real money. A lot of stores will match a competitor’s price if you just ask, but almost nobody asks because they don’t know the policy exists or can’t be bothered to find it buried in a help center article.
- Not in a rush? Ask one more thing before you buy:
“For something like this, when’s the next likely actual sale event, and is it worth waiting?”
Sometimes the answer is buy now. Sometimes it’s wait three weeks for a bigger, real drop. Either way, you’re deciding with actual information instead of a banner’s word for it.
💡 Tips & Tricks
Keep all three prompts in the same chat thread. ChatGPT builds on what it already found instead of starting from scratch, so the second and third questions get sharper answers because it already has the product and price history loaded in context.
One commenter, u/Lord_Goose, pointed out you can do a rougher version of this with plain Google search too. Fair, but ChatGPT digs through history, compares retailers, and checks price-match policies in one go instead of five open tabs and a spreadsheet you’ll never finish.
The “has this ever really been that price” question is the one that catches the most fake urgency. It’s the single most useful line in the whole prompt. Run it before any big-ticket buy, furniture, electronics, appliances, anything over $100, and you’ll start spotting the pattern yourself without even needing to ask anymore.
🚀 Your Move
Next time a banner screams “50% OFF,” don’t take its word for it! Paste the link into ChatGPT and let it check the receipts. Worst case, it confirms a good deal and you buy with confidence. Best case, it just saved you from buying into a Tuesday.
Frequently Asked Questions
Q: Do I need ChatGPT Plus to check if a sale is real?
Nope. The free version with web search turned on does the job perfectly. No paid subscription needed.
Q: What’s the difference between a real discount and a fake deal?
Real discounts show the item actually sold at a higher price recently. Fake deals use made-up “original” prices or mark down to what the item costs every few weeks anyway. Check 4, 8 weeks of price history and you’ll usually spot the pattern.
Q: Why use ChatGPT instead of just Google searching the product?
Both work. ChatGPT with web search is faster because it analyzes multiple retailers and price history in one chat, no tab-hopping. But if you’re already comfortable Google searching and comparing prices yourself, that works fine too. Pick whichever feels easier for you.
Q: What if an item is only sold by one retailer, how do I know if the price is fair?
Ask ChatGPT what the typical price range is for that product type. You can also check if the retailer price-matches competitors, or use a price-tracker extension like Honey that catalogs historical prices across the web. Between those options, you’ll get a sense of whether you’re looking at a real deal.
before you buy anything on sale, ask chatgpt if it’s actually cheaper than usual. half the deals i checked weren’t deals at all
by u/Professional-Rest138 in ChatGPTPromptGenius