Can AI find me the lowest price on something?
Half. AI with web search can point you to places to check, but prices change hourly and it can be wrong. Use it to build your search list, then confirm the price yourself before buying.
01Why half-bot
- Live prices need live data; plain chatbots don't have it.
- Search-enabled AI can surface stores and coupon ideas you missed.
- It's good at spotting hidden costs like shipping and fees once you paste the listings.
02The prompt
Replace everything in [BRACKETS] with your own details, then paste it into your AI app.
You are a careful deal hunter. What I want: [EXACT PRODUCT, MODEL NUMBER] Where I've already looked and the prices: [STORE: PRICE, SHIPPING] My zip code (optional, for shipping): [ZIP] Your task: help me find the best total price. Rules: - MUST compare total cost including shipping, tax if shown, and fees. - MUST list other places or ways to check (price trackers, open-box, refurbished) and label them as places to check, not confirmed prices. - NEVER state a price you haven't seen in what I pasted or a source you can cite. Give me: a table of what I found with totals, and 5 more places to check.
03Steps
- Search the exact model number.
- Paste what you found into the prompt.
- Confirm the final price and return policy before you buy.
04What can go wrong
- Prices and stock change fast.
- Very low prices from unknown sellers can be scams.
05What to use
06Our test runs
2 runs, each with a different made-up sample. 2 of 2 passed every check.
The made-up sample:
[EXACT PRODUCT, MODEL NUMBER]Sony WH-1000XM5 Wireless Noise Cancelling Headphones, Model WH1000XM5/B[STORE: PRICE, SHIPPING]Amazon: $349.99, $0 shipping; Best Buy: $359.00, $9.99 shipping; Walmart: $345.00, $12.99 shipping; Target: $352.50, $7.99 shipping[ZIP]90210
- Compare total cost including shipping, tax, fees
- List other places to check, not confirmed prices
- Never state a price not seen in provided data
- Provide table of totals and 5 more places
- Didn't make up details we never gave it
What came back (excerpt):
The best total price found so far is $349.99 at Amazon. Here are 5 more places to check:
Read the full answer
Based on the information you provided, here is a table with the total costs: | Store | Price | Shipping | Total | | --- | --- | --- | --- | | Amazon | $349.99 | $0 | $349.99 | | Best Buy | $359.00 | $9.99 | $368.99 | | Walmart | $345.00 | $12.99 | $357.99 | | Target | $352.50 | $7.99 | $360.49 | The best total price found so far is $349.99 at Amazon. Here are 5 more places to check: 1. **Newegg** (online retailer) - to compare prices and check for any promotions 2. **B&H Photo** (online retailer) - to compare prices and check for any deals 3. **Sony's official website** (manufacturer's website) - to check for any authorized discounts or promotions 4. **Price tracker websites like CamelCamelCamel or Keepa** (price tracking tools) - to monitor price history and potential future discounts 5. **Open-box or refurbished options on websites like eBay or Craigslist** (marketplaces for used or refurbished items) - to explore potential cost-saving alternatives, but be sure to exercise caution when purchasing from third-party sellers.
Watch that no unreferenced prices are added.
The made-up sample (a messier one):
[EXACT PRODUCT, MODEL NUMBER]Sony WH‑1000XM5 Wireless Noise‑Cancelling Headphones, Model WH1000XM5‑2024[STORE: PRICE, SHIPPING]Amazon: $299.99, $0 shipping; BestBuy: $315, $5.99 shipping; Walmart: $289, $7.50 shipping (tax not shown); Newegg: $310 (shipping??); Target: $298, $4.99 shipping[ZIP]94107 (San Francisco, CA)
- Compare total cost including shipping, tax if shown, and fees
- List 5 places to check and label them as places to check
- Never state a price not seen in the provided data
- Provide a table of found totals and 5 more places to check
- Didn't make up details we never gave it
What came back (excerpt):
you provided, here is a table comparing the total costs of the Sony WH-1000XM5 Wireless Noise-Cancelling Headphones from the retailers you've already checked: | Retailer | Price | Shipping | Total | | --- | --- | --- | --- | | Amazon | $299.
Read the full answer
Based on the information you provided, here is a table comparing the total costs of the Sony WH-1000XM5 Wireless Noise-Cancelling Headphones from the retailers you've already checked: | Retailer | Price | Shipping | Total | | --- | --- | --- | --- | | Amazon | $299.99 | $0 | $299.99 | | BestBuy | $315 | $5.99 | $320.99 | | Walmart | $289 | $7.50 | $296.50 | | Newegg | $310 | ?? | ?? | | Target | $298 | $4.99 | $302.99 | Please note that the total cost for Newegg is unknown due to missing shipping information. Additionally, tax is not shown for Walmart, so the total cost may vary depending on the tax rate in your area (San Francisco, CA, 94107). To find the best total price, you may also want to check the following places: 1. **B&H Photo** - Another online retailer that may offer competitive pricing. 2. **Price trackers like CamelCamelCamel or Keepa** - to see if the prices have dropped in the past and if there are any upcoming deals. 3. **Open-box or refurbished options on Amazon or BestBuy** - for potentially lower prices on used or refurbished models. 4. **Sony's official website** - to see if they offer any discounts or promotions directly. 5. **Costco or Sam's Club** - membership-based retailers that may offer discounted prices on bulk purchases or special deals for members. These are just suggestions for places to check, and prices may vary. It's always a good idea to compare prices and factor in any additional costs, such as tax and shipping, before making a purchase.
Check that all totals are correctly summed and tax considerations are noted.
How each run works: we fill the prompt with a made-up sample, run it once in Llama 3.3 70B, and GPT-OSS 120B grades the answer against the prompt's own rules. Word limits are counted by code, and every quote flagged as made up is checked against the full answer. Your results can differ. How we test.