AI Shopping Prompt Library 📋
Tested prompts. Real results. Copy → Paste → Customize → Shop smarter.
Every prompt below has been tested across ChatGPT, Gemini, Perplexity, and Claude. They work as-is, but you'll get better results by customizing the bracketed [variables] with your actual details.
🔍 Product Research (6 Prompts)
1. The Deep-Dive Research Prompt
I'm looking for a [product type] in the $[min]-$[max] range.
My priorities (ranked): [priority 1] > [priority 2] > [priority 3].
Dealbreakers: [things I won't accept].
I plan to use it for [primary use case] and keep it for [timeframe].
Give me your top 3 recommendations with:
- Specific model names and current approximate prices
- Pros and cons for each based on MY priorities
- Which one you'd pick and why
- One "dark horse" option I probably haven't heard of2. The "Should I Buy This?" Prompt
I'm considering buying [exact product name and model].
Current price: $[price] at [retailer].
Before I buy, tell me:
1. Is this the best option in its price range, or is there something clearly better?
2. Is this a good price historically, or should I wait?
3. What's the most common complaint from people who bought it?
4. Is a newer version coming soon that I should wait for?
5. What's one thing the marketing doesn't tell you?3. The Alternative Finder
I currently use [brand/product name] and I pay $[price].
I like: [what you like about it].
I don't like: [what you don't like].
Find me 3 alternatives:
1. A cheaper option that's "good enough"
2. A same-price option that fixes my complaints
3. A slightly pricier option that's genuinely worth the upgrade
For each, explain specifically what I'd gain and lose.4. The Specification Decoder
I'm comparing these products:
- [Product A — full name]
- [Product B — full name]
- [Product C — full name]
Create a comparison table with the specs that actually matter for [my use case].
Skip marketing specs that don't affect real-world performance.
Highlight the meaningful differences in bold.
Tell me which specs are "good enough" on all three and which one actually differentiates.5. The Review Synthesizer
Summarize the consensus on [product name] based on expert and user reviews.
Format as:
- **Everyone agrees:** [things all reviews mention]
- **Polarizing:** [things some love, others hate]
- **Red flags:** [recurring complaints]
- **Hidden gems:** [positives that only show up after extended use]
- **Overall sentiment:** [1 sentence summary]
- **Buy if:** [ideal buyer profile]
- **Skip if:** [who should avoid it]6. The Durability Check
How long does [product name] typically last with regular use?
What usually breaks or wears out first?
Is it repairable, or do I need to replace the whole thing?
What's the warranty and does the brand actually honor it?
Are there specific things I can do to extend its lifespan?💰 Deal Finding (5 Prompts)
7. The Price History Analyst
What's the typical price range for [product name] over the past 12 months?
What was the lowest price it hit and when?
Is the current price of $[current price] a good deal, average, or overpaying?
When is the next likely sale event where it might drop?
Should I buy now or wait?8. The Coupon & Discount Stack
I'm about to buy from [retailer website].
My cart total is $[amount].
Help me reduce this price:
1. Are there any active promo codes for [retailer]?
2. Can I get a first-time buyer discount or email signup?
3. Does this retailer do price matching?
4. Is there a cashback portal (Rakuten, TopCashback) that covers them?
5. Am I better off buying through a different channel (app vs mobile vs desktop)?
6. Would a store credit card save me more than the signup bonus costs?9. The Bundle Builder
I need to buy all of these:
- [Item 1]
- [Item 2]
- [Item 3]
- [Item 4]
What's the cheapest way to get everything?
Should I buy from one retailer for free shipping, or split across retailers for better individual prices?
Are any of these commonly bundled together at a discount?
Calculate the total both ways.10. The Refurbished/Open-Box Scout
I want [product name] but don't want to pay full price.
Is this product available refurbished, open-box, or renewed?
Who sells certified refurbished units — the manufacturer, Amazon Renewed, or third parties?
What's the typical discount vs. new?
What warranty comes with refurbished?
What's the actual risk — how do refurb units compare in reliability?11. The Seasonal Timing Prompt
I need to buy [product category — e.g., "a new mattress"].
There's no rush — I can wait up to [timeframe].
When is the absolute best time to buy this category?
Which sales events have the deepest genuine discounts (not fake markups)?
Is there a "worst time to buy" I should avoid?
Create a month-by-month buying calendar for this product type.📊 Analysis & Comparison (5 Prompts)
12. The Total Cost of Ownership
I'm choosing between:
- [Option A] at $[price]
- [Option B] at $[price]
Don't just compare purchase price. Calculate the total 3-year cost including:
- Purchase price
- Required accessories or add-ons
- Consumables (filters, cartridges, etc.)
- Energy/operating costs
- Expected maintenance or repairs
- Resale value after [timeframe]
Which is actually cheaper to OWN, not just to BUY?13. The Upgrade Worth-It Calculator
I currently own [current product — model and age].
I'm considering upgrading to [new product].
Upgrade cost: $[price] (or $[price minus trade-in] after trade-in).
Is this upgrade worth it? Analyze:
- What specific improvements will I actually notice day-to-day?
- What did I have that I'd lose (if anything)?
- On a scale of 1-10, how meaningful is this upgrade for [my use case]?
- Should I wait for the next generation instead?14. The Brand Showdown
Compare [Brand A] vs [Brand B] for [product category].
Don't give me marketing talking points. Tell me:
- Which has better build quality and reliability data?
- Which has better customer service and warranty experience?
- Which holds resale value better?
- Which is the "safe choice" vs the "enthusiast choice"?
- For someone who values [my priority], which brand wins?15. The Subscription Audit
Here are my current subscriptions and recurring purchases:
- [Subscription 1]: $[amount]/[frequency]
- [Subscription 2]: $[amount]/[frequency]
- [Subscription 3]: $[amount]/[frequency]
- [Subscription 4]: $[amount]/[frequency]
My annual total: $[sum].
Audit each one:
- Am I overpaying? Is there a cheaper alternative?
- Am I under-using any of these?
- Do any overlap in functionality?
- Which ones should I cancel, downgrade, or switch?
- Calculate my new annual total after optimizations.16. The "Buy vs Rent vs Subscribe" Prompt
I need [product/service] for [how long/often].
Compare three approaches:
1. Buy it outright — upfront cost, long-term value
2. Rent it — per-use cost, flexibility
3. Subscribe — monthly cost, what's included
For MY usage pattern, which makes the most financial sense?
At what usage threshold does buying beat renting?🎁 Gift Shopping (5 Prompts)
17. The Personalized Gift Finder
I need a gift for:
- Relationship: [who they are to you]
- Age: [age]
- Interests: [hobbies, passions, obsessions]
- Recent life events: [just moved, new job, had a baby, etc.]
- Budget: $[amount]
- They already own: [relevant items they have]
- Gift style: [practical / sentimental / experience / funny]
Give me 5 specific gift ideas (not categories — actual products or experiences with names and approximate prices). For each, explain why it's a good match for THIS person.18. The Scale Gift Solver
I need [number] gifts for [occasion — e.g., "teacher appreciation week"].
Budget: $[amount] each.
Must be: [constraints — e.g., "not food due to allergies," "shippable," "not generic"].
Give me 3 options that work at scale:
1. A crowd-pleaser that everyone likes
2. Something unique that shows thought
3. A practical item people actually use
Include where to buy and whether there's a bulk discount.19. The Last-Minute Gift Rescue
I need a gift for [person/occasion] by [date — e.g., "tomorrow"].
Budget: $[amount].
They're into: [brief interests].
Options that can arrive in time:
1. Digital/instant delivery options (gift cards, subscriptions, donations in their name)
2. Local pickup options I can get today
3. Experience gifts I can book right now
4. If I had 2 more days, what would be the ideal gift?20. The "They Have Everything" Gift Prompt
I need a gift for someone who literally buys themselves anything they want.
Budget: $[amount].
They're into: [interests].
They already have: [the obvious stuff].
Find gifts in these categories:
1. Something in their interest area they don't know exists
2. An upgraded version of something they use daily
3. An experience rather than a thing
4. Something consumable (they'll use it up, so no clutter)
5. Something personalized that can't be self-bought21. The Wedding Registry Gap Finder
[Person's name] is getting married. Their registry is at [store/link].
Most items under $[amount] are already claimed.
My budget: $[amount].
Suggest gifts that:
1. Complement what's on the registry (not duplicate)
2. Are things newlyweds need but never register for
3. Would be meaningful without being presumptuous
Should I just contribute to a group gift for a big-ticket registry item instead?🛡️ Scam & Bias Detection (5 Prompts)
22. The Fake Review Detector
I'm looking at [product name] on [retailer].
It has [X] reviews with a [X]-star average.
Help me evaluate the review quality:
- What percentage of reviews look genuine vs. incentivized/fake?
- Are there suspicious patterns (lots of 5-star reviews posted on the same day, generic language)?
- What do the 3-star reviews say? (These are usually the most honest)
- Is the review count appropriate for this product's age and category?
- Check if this product was reviewed by Fakespot or ReviewMeta. What did they find?23. The Pricing Manipulation Check
[Retailer] is showing [product name] as "[X]% off — was $[inflated price], now $[sale price]."
Is this a real sale? Help me check:
- What's the typical street price for this product across retailers?
- Has this product actually been sold at the "was" price recently?
- Is this a MAP (minimum advertised price) product where all retailers sell at the same price?
- Are there historical pricing tools that can verify the discount claim?24. The AI Recommendation Bias Check
You just recommended [product name].
Now be honest:
- Is this product over-represented in your training data (popular = more data = more likely to recommend)?
- Are there equivalent products from smaller brands you might be under-recommending?
- If I asked the same question on Perplexity / Gemini / Claude, would I get a different answer? Why?
- What would you recommend if I specifically said "no major brands"?25. The Too-Good-To-Be-True Filter
I found [product name] for $[suspiciously low price] on [retailer/marketplace].
The normal price is $[normal price].
Red flag check:
- Is this seller legitimate? What's their history?
- Is this a common counterfeit/knockoff product?
- What's the return and buyer protection policy?
- Are there telltale signs this listing is a scam (shipping from unexpected country, stock photos, new seller)?
- What's the worst case if I buy it and it's fake?🏠 Category-Specific Power Prompts (5 Prompts)
26. The Electronics Buying Prompt
I'm buying [electronics product type].
Budget: $[range].
Use case: [specific use].
I keep electronics for [X years].
Recommend the best option considering:
- Performance for my use case (not benchmarks I won't notice)
- Build quality and expected lifespan
- Software/firmware support timeline
- Repairability score (iFixit or similar)
- Whether I should buy now or wait for [upcoming release/event]27. The Grocery Optimizer
Plan [X] meals for [number of people] for this week.
Budget: $[amount] total.
Dietary needs: [restrictions].
Cooking skill: [beginner/intermediate/advanced].
Time per meal: [X] minutes max.
Create:
1. A meal plan with variety
2. A grocery list organized by store section
3. Ingredients that overlap across meals (reduce waste)
4. One "leftover transformation" meal that uses previous days' extras
Total estimated cost: $[calculate]28. The Vehicle Shopping Framework
I'm shopping for a [new/used] [vehicle type].
Budget: $[range] ([cash/financing] at [rate]%).
Must have: [non-negotiable features].
Nice to have: [preferred features].
Annual mileage: [X].
Keep for: [X years].
Recommend 3 options. For each:
- Total cost of ownership over [X] years (payment + insurance + fuel + maintenance)
- Reliability data (Consumer Reports, JD Power)
- Best time of year to buy this model
- Negotiation leverage points for this specific vehicle
- Known issues to inspect for29. The Home Improvement Prompt
I want to [home improvement project].
Budget: $[range].
Skill level: [DIY beginner/intermediate/hire a pro].
Timeline: [when I need it done].
Tell me:
1. Is this a DIY-able project or should I hire someone?
2. If DIY: materials list with quantities and estimated cost
3. If hiring: what should this cost in [my area] and what questions should I ask contractors?
4. What's the biggest mistake people make with this project?
5. Will this add value to my home, and if so, what's the typical ROI?30. The Wardrobe Builder
I need [clothing item/wardrobe update].
Budget: $[range].
Style: [describe your style or give examples].
Body type: [if relevant].
Climate: [where you live].
Priority: [longevity/trendy/versatile/comfort].
Recommend specific items:
- One investment piece worth paying more for
- One budget-friendly option that looks more expensive than it is
- One versatile piece that works with multiple outfits
- Brands to check that match my style and budget
- What to avoid in this category (materials, construction red flags)How to Get the Most From These Prompts
- Always customize the brackets. Generic inputs = generic outputs.
- Start with Perplexity for research prompts (sourced results). Use ChatGPT for analysis prompts (deeper reasoning).
- Follow up. The first answer isn't the final answer. Say "dig deeper on option 2" or "what are you not telling me?"
- Cross-check. Run the same prompt through 2 AIs. If they agree, high confidence. If they differ, investigate why.
- Save your best prompts. Modify them for future purchases. Your prompts get better with practice.
These prompts are free and open. Copy them, modify them, share them.
Part of the byPrompt Network. See also: The Shopping Playbook → | AI Platform Comparison → | Mistakes to Avoid →